Rapper Kendrick Lamar performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles.
iHeartRadio Music Awards —
Rapper Kendrick Lamar performs onstage during the 2014 iHeartRadio Music Awards held at The Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles.
Kevin Winter/Getty Images
Singer Shakira poses backstage. She performed her song "Empire."
iHeartRadio Music Awards —
Singer Shakira poses backstage. She performed her song "Empire."
Jason Kempin/Getty Images
Usher performs.
iHeartRadio Music Awards —
Usher performs.
Kevin Winter/Getty Images
Rihanna won several awards, including artist of the year.
iHeartRadio Music Awards —
Rihanna won several awards, including artist of the year.
Mark Davis/NBC/NBCU/Getty Images
Musicians Dan Smith, left, and Will Farquarson of Bastille perform.
iHeartRadio Music Awards —
Musicians Dan Smith, left, and Will Farquarson of Bastille perform.
Kevin Winter/Getty Images
Actor Corey Feldman takes a selfie in the audience with a friend.
iHeartRadio Music Awards —
Actor Corey Feldman takes a selfie in the audience with a friend.
Kevin Winter/Getty Images
Ariana Grande performs onstage during the 2014 iHeartRadio Music Awards.
iHeartRadio Music Awards —
Ariana Grande performs onstage during the 2014 iHeartRadio Music Awards.
Kevin Winter/Getty Images
DJs Matt Stafford, left, and Chris Stafford of the Stafford Brothers.
iHeartRadio Music Awards —
DJs Matt Stafford, left, and Chris Stafford of the Stafford Brothers.
Kevin Winter/Getty Images
Actor/musician Jared Leto accepts the best new artist award on behalf of singer/songwriter Lorde (not pictured) onstage.
iHeartRadio Music Awards —
Actor/musician Jared Leto accepts the best new artist award on behalf of singer/songwriter Lorde (not pictured) onstage.
Kevin Winter/Getty Images
Dancers perform onstage during the Michael Jackson World Premiere featuring Usher.
iHeartRadio Music Awards —
Dancers perform onstage during the Michael Jackson World Premiere featuring Usher.
Kevin Mazur/Getty Images
Actor Joe Manganiello speaks.
iHeartRadio Music Awards —
Actor Joe Manganiello speaks.
Kevin Winter/Getty Images
Pitbull and from left, Paula Van Oppen, Emmalyn Estrada, Lauren Bennett and Natasha Slayton of G.R.L. perform. Pitbull will be collaborating on the Word Cup song this year.
iHeartRadio Music Awards —
Pitbull and from left, Paula Van Oppen, Emmalyn Estrada, Lauren Bennett and Natasha Slayton of G.R.L. perform. Pitbull will be collaborating on the Word Cup song this year.
Chris Pizzello/Invision/AP
DJ Avicii shows off his award as he walks backstage.
iHeartRadio Music Awards —
DJ Avicii shows off his award as he walks backstage.
Jason Merritt/Getty Images
Pharrell Williams performs after winning an award.
iHeartRadio Music Awards —
Pharrell Williams performs after winning an award.
Kevin Winter/Getty Images