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LOS ANGELES, CA - MAY 01: Musician Pharrell Williams performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487717893 )

LOS ANGELES, CA - MAY 01: Musician Pharrell Williams performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487717891 )

Jared Leto presents the award for best new artist at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( iHeartRadio Music Awards -Show )

LOS ANGELES, CA - MAY 01: (L-R) Singers Lauren Bennett, Natasha Slayton, Emmalyn Estrada and Paula Van Oppen of G.R.L. attend the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487647417 )

LOS ANGELES, CA - MAY 01: Singer Austin Mahone attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487647989 )

LOS ANGELES, CA - MAY 01: Singer Pia Toscano attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487647831 )

LOS ANGELES, CA - MAY 01: (L-R) Singers Natasha Slayton, Emmalyn Estrada, Lauren Bennett, and Paula Van Oppen of G.R.L. perform onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487676071 )

LOS ANGELES, CA - MAY 01: DJs Matt Stafford (L) and Chris Stafford of the Stafford Brothers perform onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487676947 )

LOS ANGELES, CA - MAY 01: Dancer Cheryl Burke attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Kempin/Getty Images for Clear Channel) ( 487659921 )

LOS ANGELES, CA - MAY 01: Model Courtney Bingham (jewelry detail) attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487663305 )

LOS ANGELES, CA - MAY 01: Musician Nikki Sixx (L) and Courtney Bingham attend the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487660293 )

LOS ANGELES, CA - MAY 01: Singer Mya attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487647235 )

LOS ANGELES, CA - MAY 01: Caroline Bryan (L) and recording artist Luke Bryan attend the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487647717 )

LOS ANGELES, CA - MAY 01: Singer Darnaa attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487658569 )

LOS ANGELES, CA - MAY 01: Rapper/host Pitbull (C) and (L-R) singers Emmalyn Estrada, Paula Van Oppen, Natasha Slayton, and Lauren Bennett of G.R.L. perform onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487676223 )

LOS ANGELES, CA - MAY 01: Radio personality Elvis Duran (L) and actor Jared Leto attend the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Kempin/Getty Images for Clear Channel) ( 487659845 )

LOS ANGELES, CA - MAY 01: Actress Ashley Greene attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Kempin/Getty Images for Clear Channel) ( 487663251 )

LOS ANGELES, CA - MAY 01: Model Courtney Anne(L) and actor Corey Feldman attend the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487662807 )

LOS ANGELES, CA - MAY 01: Rapper Lil Jon attends the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487660499 )

LOS ANGELES, CA - MAY 01: Singer Luke Bryan performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487676597 )

LOS ANGELES, CA - MAY 01: Singer Dan Smith of Bastille performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487676977 )

LOS ANGELES, CA - MAY 01: Singer Ariana Grande performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487677729 )

Giuliana Rancic arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP) ( iHeartRadio Music Awards - Arrivals )

LOS ANGELES, CA - MAY 01: Singer Ariana Grande performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487679717 )

LOS ANGELES, CA - MAY 01: Dancers perform onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487680967 )

LOS ANGELES, CA - MAY 01: Singer Rihanna accepts the Best Fan Army award onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487680675 )

LOS ANGELES, CA - MAY 01: Rapper Kendrick Lamar performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487681425 )

LOS ANGELES, CA - MAY 01: (L-R) Musicians Dan Reynolds, Daniel Platzman, Ben McKee, and Wayne Sermon of Imagine Dragons accept the Alternative Rock Song of the Year award for 'Demons' onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487686437 )

LOS ANGELES, CA - MAY 01: (L-R) Natasha Slayton, Lauren Bennett, Emmalyn Estrada and Paula Van Oppen of G.R.L pose in the press room during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487680205 )

LOS ANGELES, CA - MAY 01: Rapper Sean 'Diddy' Combs speaks onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487687059 )

LOS ANGELES, CA - MAY 01: Singer Shakira performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487687329 )

Adam Lambert arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP) ( iHeartRadio Music Awards - Arrivals )

LOS ANGELES, CA - MAY 01: Singer Shakira attends 2014 iHeartRadio Music Awards at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images) ( 487733115 )

LOS ANGELES, CA - MAY 01: Musician Blake Shelton accepts the Country Song of the Year award for 'Boys 'Round Here' onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487688199 )

LOS ANGELES, CA - MAY 01: Singer Shakira speaks onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487717287 )

LOS ANGELES, CA - MAY 01: Singer Gwen Stefani speaks onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487717645 )

LOS ANGELES, CA - MAY 01: Musician Pharrell Williams accepts the iHeartRadio Innovator Award onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487718469 )

LOS ANGELES, CA - MAY 01: Singer Jennifer Lopez (L) and TV personality Ryan Seacrest speak onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487718689 )

LOS ANGELES, CA - MAY 01: Singer Rihanna accepts the Artist of the Year award onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Kevin Winter/Getty Images for Clear Channel) ( 487733039 )

LOS ANGELES, CA - MAY 01: DJ Avicii backstage at the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on May 1, 2014 in Los Angeles, California. iHeartRadio Music Awards are being broadcast live on NBC. (Photo by Jason Merritt/Getty Images for Clear Channel) ( 487717937 )

Hilary Duff speaks at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( iHeartRadio Music Awards -Show )

Joe Manganiello poses in the press room at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP) ( iHeartRadio Music Awards - Press Room )

Jared Leto performs at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Chris Pizzello/Invision/AP) ( iHeartRadio Music Awards -Show )