2014 iHeartRadio Music Festival One Direction, 5 Seconds of Summer, Taylor Swift

Subscribe! One Direction, 5 Seconds of Summer, Paramore, Hayley Williams, Chris Brown, Iggy Azalea, Taylor Swift, 50 Cent, Macklemore, Christopher Mansfield, Darren Criss, Ashton Irwin, Calum Hood, Luke Hemmings, Michael Clifford, Nick Cannon, Meghan Trainor, Jeremy Davis, Taylor York, Dascha Polanco, Laverne Cox, Taryn Manning, Patrick Monahan, Jimmy Stafford, Train, Hilary Duff, Pablo Schreiber, Johnny Galecki, Sophia Bush, Anna Faris, Chris Pratt, Leah Pipes, Adelaine Kane, Fergie,