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Joan Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (File, Oct 5, 2009) (AP Photo/Lionel Cironneau) ( FRANCE MIPCOM )

Melissa Rivers peeks out her limousine window before departing the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD016_JOAN_RIVERS_ )

Melissa Rivers (center R) and son Cooper Endicott (center L) attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD020_JOAN_RIVERS_ )

Bagpipers march from the funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Howard Stern, center, arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers-Funeral )

Barbara Walters arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Oscar de la Renta and Carolina Herrera attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH020_JOAN_RIVERS_ )

Whoopi Goldberg arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Television news anchor Diane Sawyer, upper right, arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers-Funeral )

Geraldo Rivera, center, arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Kelly Osbourne, center, arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers-Funeral )

Dr. Memhet Oz, left, and his wife Lisa Oz, arrive at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

People in a horse and carriage pass as attendees arrive at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Mourners embrace as they arrive at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

A general view of Temple Emanu-El before the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD040_JOAN_RIVERS_ )

Deborah Norville is embraced after a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Judge Judy Scheindlin attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH024_JOAN_RIVERS_ )

Donald Trump arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York, Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers-Funeral )

Steve Forbes attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD012_JOAN_RIVERS_ )

Melissa Rivers attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD038_JOAN_RIVERS_ )

Melissa Rivers (center R) and son Cooper Endicott (center L) attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD022_JOAN_RIVERS_ )

Kathy Griffin attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD013_JOAN_RIVERS_ )

Kathie Lee Gifford and Hoda Kotb attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Carolina Herrera attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD014_JOAN_RIVERS_ )

Kelly Osbourne attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD002_JOAN_RIVERS_ )

Sarah Jessica Parker attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD003_JOAN_RIVERS_ )

Radio personality Robin Quivers, right, arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Diane Sawyer attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Charlotte, a cousin of the late Joan Rivers attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH027_JOAN_RIVERS_ )

Donald Trump attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD007_JOAN_RIVERS_ )

Giuliana Rancic (L) and Kelly Osbourne attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD011_JOAN_RIVERS_ )

Sarah Jessica Parker (R), Matthew Broderick (L) and their son James Broderick attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Joy Behar attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Bagpipers march out the doors of Temple Emanu-El onto Fifth Avenue after the funeral service for comedian Joan Rivers in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Gary dell'Abate attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH003_JOAN_RIVERS_ )

Michael Musto attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Dr. Oz and Lisa Oz attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Chuck Scarborough attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH009_JOAN_RIVERS_ )

Steve Guttenberg attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Kyle MacLachlan and Desiree Gruber attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Denis Leary attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH056_JOAN_RIVERS_ )

People watch as guests arrive at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday, Sept. 4, 2014. She was 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Bagpipers march out the doors of Temple Emanu-El after the funeral service for comedian Joan Rivers in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Terrence J attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH019_JOAN_RIVERS_ )

Clive Davis attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH015_JOAN_RIVERS_ )

Donald Trump Jr. attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH026_JOAN_RIVERS_ )

NDennis Basso attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD023_JOAN_RIVERS_ )

Oscar de la Renta attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH022_JOAN_RIVERS_ )

NEW YORK, NY - SEPTEMBER 07: Andy Cohen attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD030_JOAN_RIVERS_ )

Alan Cumming and Grant Shaffer attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Elie Tahari attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD028_JOAN_RIVERS_ )

John Waters attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD027_JOAN_RIVERS_ )

Ivanka Trump and Jared Kushner attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Paul Shaffer attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH036_JOAN_RIVERS_ )

Joyce Adams attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Tommy Tune attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH055_JOAN_RIVERS_ )

An attendee pauses as he arrives at a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Desiree Gruber and Kyle MacLachlan attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH033_JOAN_RIVERS_ )

Matthew Broderick attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Mario Cantone attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

NEW YORK, NY - SEPTEMBER 07: Jillian Michaels attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Attendees gather after a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Bernadette Peters attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Kris Connor/Getty Images) ( Joan Rivers Memorial Service )

Alicia Quarles attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH032_JOAN_RIVERS_ )

Bruce Glikas attends the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH045_JOAN_RIVERS_ )

Donald Trump (center L) and wife Melania Trump attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD036_JOAN_RIVERS_ )

Atmosphere at the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. (Photo by Taylor Hill/Getty Images) ( 511050959TH050_JOAN_RIVERS_ )

Howard Stern, center right, and his wife Beth depart a funeral service for comedian Joan Rivers at Temple Emanu-El in New York Sunday, Sept. 7, 2014. Rivers died Thursday at 81. (AP Photo/Craig Ruttle) ( Joan Rivers Funeral )

Melissa Rivers (center R) and son Cooper Endicott (center L) attend the Joan Rivers memorial service at Temple Emanu-El on September 7, 2014 in New York City. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (Photo by D Dipasupil/Getty Images) ( 511050959DD021_JOAN_RIVERS_ )

Joan and Melissa Rivers arrive for the 79th Academy Awards Sunday, Feb. 25, 2007, in Los Angeles. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (AP Photo/Kevork Djansezian) ( Oscars Arrivals )

Joan Rivers makes it quite clear - she's starting a new syndicated talk show and its name is "The Joan Rivers Show," in Los Angeles, Aug. 15, 1989. Rivers passed away on September 4, 2014 after suffering respiratory and cardiac arrest during vocal cord surgery on August 28, 2014. (AP Photo/Nick Ut) ( Joan Rivers 1989 )