Relive it with photos, videos, highlights & more
Echosmith joins Romeo for a special iHeartRadio Music Festival edition of the countdown
SPOTTED: Jennifer Lawrence Backstage at the iHeartRadio Music Festival
Neon Trees Tyler Glenn's Crowdsurfing Session Energizes iHeartRadio Village
WATCH: Macklemore Joins Ed Sheeran On Stage To Perform 'Same Love'
WATCH: Ed Sheeran On One Direction, Tom Jones, And More
John Newman Joins Calvin Harris On Stage To Perform 'Blame'
PHOTOS: The iHeartRadio Music Festival According to Instagram