JinJoo Lee, left, Joe Jonas, second from right, and Cole Whittle, right, of DNCE perfom “Cake by the Ocean” and “Le Freak” with special guest Nile Rodgers.
(Chris Pizzello / Invision / Associated Press)
Recording artist Justin Bieber accepts the award for Best Male Artist.
(Rich Polk / Getty Images for iHeartRadio / Turne)
Recording artist and producer Pharrell Williams
(Rich Polk / Getty Images for iHeartRadio / Turne)Advertisement
Iggy Azalea performs “Team” at the iHeartRadio Music Awards on Sunday at the Forum.
(Chris Pizzello / Invision )
Recording artist Zayn Malik performs.
(Rich Polk / Getty Images for iHeartRadio / Turne)
Demi Lovato, left, and Brad Paisley perform “Stone Cold.”
(Chris Pizzello / Invision / Associated Press)
Recording artist Justin Timberlake introduces Taylor Swift.
(Jason Kempin / Getty Images for iHeartRadio / Turner)Advertisement
Taylor Swift accepts the award for best tour.
(Chris Pizzello / Invision / Associated Press)
Rapper Fetty Wap performs.
(Jason Kempin / Getty Images for iHeartRadio / Turner)
Selena Gomez accepts the award for triple threat for her career as a singer, actress and dancer.
(Chris Pizzello / Invision / Associated Press)
Meagan Goode introduces a performance by Meghan Trainor.
(Chris Pizzello / Invision / Associated Press)Advertisement
Meghan Trainor performs.
(Jason Kempin / Getty Images for iHeartRadio / Turner)
Meghan Trainor poses with her backup dancers backstage.
(Frazer Harrison / Getty Images for iHeartRadio / Turner)
Justin Bieber performs “Love Yourself” and “Company.”
(Chris Pizzello / Invision / Associated Press)
Recording artist Jason Derulo strikes an angular pose.
(Jason Kempin / Getty Images for iHeartRadio / Turner)Advertisement
Demi Lovato arrives at the Forum.
(Richard Shotwell / Invision / Associated Press)
Julianne Hough, left, and Derek Hough, Taylor Swift and Chris Brown.
(Left - Richard Shotwell/Invision/Associated Press / Center - Jesse Grant/Getty Images for iHeartRadio / Turner / Right - Frederick M. Brown/Getty Images)
Wiz Khalifa, Cheryl Burke, Diplo and Meagan Goode.
(Left - Richard Shotwell/Invision/AP; 2nd left - Frazer Harrison/Getty Images for iHeartRadio; 2nd right - Frederick M. Brown/Getty Image; right - Frazer Harrison/Getty Images for iHeartRadio)
Actress Keke Palmer takes a selfie with TV personality Mario Lopez.
(Jonathan Leibson / Getty Images for iHeartRadio / Turner)Advertisement
Cody Simpson, Jhene Aiko, Chris Daughtry and Bethany Mota.
(Left - Frazer Harrison/Getty Images for iHeartRadio / Turner; 2nd left - Frederick M. Brown/Getty Images; 2nd right and right - Richard Shotwell/Invision/AP)
Musician Pete Wentz
(Frazer Harrison / Getty Images for iHeartRadio / Turner)
Iggy Azalea, Selena Gomez, Jason Derulo and Big Sean.
(Left, 2nd left and right - Richard Shotwell/Invision/Associated Press; 2nd left - Jonathan Leibson/Getty Images for iHeartRadio / Turner)