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File - In this Jan. 21, 2013 file photo, Kelly Clarkson arrives with Brandon Blackstock for the ceremonial swearing-in of President Barack Obama at the U.S. Capitol during the 57th Presidential Inauguration in Washington. Clarkson says she’s expecting her first child. The 31-year-old singer said Tuesday, Nov. 19, 2013, on Twitter that she and husband Blackstock are expecting their first child together. (AP Photo/Pablo Martinez Monsivais, File) ( People-Kelly Clarkson )

Kelly Clarkson presents the award for male vocalist of the year at the 47th annual CMA Awards at Bridgestone Arena on Wednesday, Nov. 6, 2013, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP) ( 2013 CMA Awards - Show )

Kelly Clarkson and will.i.am announce the nominees for the American Music Awards, on Thursday, Oct. 10, 2013 in New York. (Photo by Charles Sykes/Invision/AP) ( American Music Awards Nominees Press Conference )

Kelly Clarkson perform at VH1 Divas on Sunday, Dec. 16, 2012, at the Shrine Auditorium in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( 2012 VH1 Divas Show )

Singers Seal, right, and Kelly Clarkson sing the national anthem before the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2011. (AP Photo/AJ Mast) ( IndyCar Indy 500 Auto Racing )

LOS ANGELES, CA - DECEMBER 16: (L-R) Kelly Clarkson and Ciara backstage at "Vh1 Divas" 2012 at the Shrine Auditorium on December 10, 2012 in Los Angeles, California. (Photo by Frank Micelotta/Invsion/AP) ( "VH1 Divas" 2012 - Backstage & Audience )

LOS ANGELES, CA - FEBRUARY 10: Singer Kelly Clarkson (R) and Brandon Blackstock attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS) ( 161029190PH00007_The_55th_A )

Singers Kelly Clarkson, left, and Demi Lovato perform together at Z100's Jingle Ball concert at Madison Square Garden on Friday, Dec. 9, 2011 in New York. (AP Photo/Evan Agostini) ( Z100 Jingle Ball 2011 NY )

NEW YORK, NY - DECEMBER 18: (L-R) Singers Jennifer Hudson, Kelly Clarkson, and Mary J. Blige perform onstage at "VH1 Divas Celebrates Soul" at Hammerstein Ballroom on December 18, 2011 in New York City. â??VH1 Divas Celebrates Soulâ?? premieres Monday, December 19 at 9 PM/8c on VH1. (Photo by Frank Micelotta/Invision/AP) ( VH1 Divas Celebrates Soul - Show )

Kelly Clarkson, left, accepts the award for best pop vocal album for "Stronger" at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. Looking on from right are presenters Kaley Cuoco, second right, and Keith Urban, right. (Photo by John Shearer/Invision/AP) ( 2013 Grammy Awards Show )

Kelly Clarkson performs the national anthem with the Indianapolis Children's Choir before the NFL Super Bowl XLVI football game between the New York Giants and the New England Patriots, Sunday, Feb. 5, 2012, in Indianapolis. (AP Photo/Charlie Riedel) ( Super Bowl Football )

From left, Jake Owen and LeAnn Rimes present the award for single of the year to Jason Aldean and Kelly Clarkson at the 47th Annual Academy of Country Music Awards on Sunday, April 1, 2012 in Las Vegas. (AP Photo/Mark J. Terrill) ( 2012 ACM Awards Show )

NASHVILLE, TN - NOVEMBER 1: Kelly Clarkson and Vince Gill perform on the 46th Annual CMA Awards at the Bridgestone Arena on November 1, 2012 in Nashville, Tennessee. (Photo by Frank Micelotta/Invsion/AP) ( 46th Annual CMA Awards - Show )

Kelly Clarkson performs with Trisha Yearwood on Day 3 of the 2013 CMA Music Festival at the LP Field on Saturday, June 8, 2013 in Nashville, Tenn. (Photo by Wade Payne/Invision/AP) ( 2013 CMA Music Festival - Day 3 )

Kelly Clarkson performs a medley of her songs at the 40th Annual American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles.(Photo by Matt Sayles/Invision/AP) ( 2012 American Music Awards Show )

Ice Cube and Kelly Clarkson attend the Pepsi NFL anthems kick off at Hard Rock Cafe on September 4, 2012 in New York City. (Photo by Dario Cantatore/Invision/AP) ( Pepsi NFL Anthems Kickoff Eve at Hard Rock Cafe New York )

Kelly Clarkson performs at Green Mountain Coffee’s “Great Coffee, Good Vibes, Choose Fair Trade” campaign concert on Thursday, Oct. 10, 2013 in New York. (Photo by Charles Sykes/Invision/AP) ( Kelly Clarkson Fair Trade Month Concert )

Singer Kelly Clarkson is greeted by President Barack Obama, left and Vice President Joe Biden at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Pablo Martinez Monsivais) ( Inaugural Swearing In )

Kelly Clarkson performs at the 37th Annual American Music Awards on Sunday, Nov. 22, 2009, in Los Angeles. (AP Photo/Matt Sayles) ( 2009 AMA Awards Show )

LOS ANGELES, CA - FEBRUARY 12: Brandon Blackstock and Kelly Clarkson attend Warner Music Group Grammy Celebration hosted by InStyle at Chateau Marmont on February 12, 2012 in Los Angeles, California. (Photo by Todd Williamson/Getty Images for InStyle) ( 138315997_002 )

Kelly Clarkson performs at the 48th Annual Academy of Country Music Awards at the MGM Grand Garden Arena in Las Vegas on Sunday, April 7, 2013. (Photo by Chris Pizzello/Invision/AP) ( 48th Annual Academy of Country Music Awards - Show )

WEST HOLLYWOOD, CA - FEBRUARY 12: (L-R) Singers Reba McEntire, Blake Shelton and Kelly Clarkson pose together at the Warner Music Group Grammy Celebration hosted by InStyle at the Chateau Marmont on February 12th, 2012 in West Hollywood, CA. (Photo by Frank Micelotta/PictureGroup) via AP IMAGES ( 2012 Warner Music Group Grammy Celebration Hosted By InStyle At the Chateau Marmont )

Singer Kelly Clarkson performs at the Beacon Theatre as part of her My December tour, Sunday Oct. 14, 2007 in New York. (AP Photo/Peter Kramer) ( Kelly Clarkson Concert )

Kelly Clarkson arrives at the VH1 Divas concert, in New York on Thursday, Sept. 17, 2009. (AP Photo/Peter Kramer) ( VH1 Divas Arrivals )

Kelly Clarkson walks the red carpet during the Radio Music Awards at the Aladdin Theater for the Performing Arts, Monday Oct. 25, 2004, in Las Vegas. (AP Photo/Eric Jamison) ( 2004 Radio Music Awards )

Musician Kelly Clarkson poses for a portrait on Monday, Nov. 5, 2012, in Los Angeles. (Photo by Matt Sayles/Invision/AP) ( Kelly Clarkson Portraits )

Kelly Clarkson backstage at the MTV music awards Sunday, August 28, 2005 (AP Photo/Alan Diaz) ( 2005 MTV VMA AWARDS )

Kelly Clarkson arrives at the Motorola 9th annual anniversary party in Los Angeles on Thursday, Nov. 8, 2007. (AP Photo/ Matt Sayles) ( Moto 9 Party )

Producer Dick Clark, right, directs singer Kelly Clarkson, center, and Nick Lachey to the photographers after they announced nominees to the 32nd annual American Music Awards Tuesday, Sept. 14, 2004, in Beverly Hills, Calif. The awards will be presented during a three-hour special on the ABC television network on Nov. 14. (AP Photo/Kevork Djansezian) ( AMERICAN MUSIC AWARDS )

Kelly Clarkson poses for photographers in the photo room at the "Idol Gives Back" fundraising special of "American Idol" in Los Angeles on Wednesday, April 25, 2007. (AP Photo/Matt Sayles) ( American Idol Gives Back )

Kelly Clarkson holds her Grammy's for Best Pop Vocal Album and Best Female Pop Vocal Performance at the 48th Annual Grammy Awards on Wednesday, Feb. 8, 2006, in Los Angeles. (AP Photo/Reed Saxon) ( GRAMMYS )

Singers Kelly Clarkson, left, Marc Anthony, second from left, and Madeleine Peyroux, join Tony Bennett, as they sing the song "San Francisco" during Bennett's 80th birthday celebration at the Kodak Theater in Los Angeles, Thursday, Nov. 9, 2006. (AP Photo/Kevork Djansezian) ( TONY BENNETT 80TH )

FILE - In this Sept. 4, 2002 file photo, Kelly Clarkson, 20, of Burleson, Texas, sings "A Moment Like This," after winning in the final episode of Fox's television competition "American Idol," in Los Angeles. (AP Photo/Lucy Nicholson, file) ( Decade-TV )

LOS ANGELES, CA - FEBRUARY 12: (L-R) Reba McEntire, Warner Music Nashville's President and CEO John Espositio, Blake Shelton, Brandon Blackstock and Kelly Clarkson attend Warner Music Group Grammy Celebration hosted by InStyle at Chateau Marmont on February 12, 2012 in Los Angeles, California. (Photo by Todd Williamson/Getty Images for InStyle ) ( 138315997_001 )