The Script The Fray Boyce Avenue Snow Patrol Maroon 5 Keane Augustana Coldplay Charlie Puth Three Doors Down 5 Seconds Of Summer Parachute Andy Grammer Demi Lovato David Archuleta Gavin Degraw The Wanted Katy Perry The Killers Goo Goo Dolls Doo-Wops & Hooligans Jason Mraz The Score Chris Cagle Simple Plan P!Nk James Bay Lauren Jauregui Nickelback Lawson Mkto Florence And The Machine James Blunt Estelle Pasenger James Morrison Tom Odell Kelly Rowland Mayday Parade Westlife Haven Yates Boys Like Girls The Band Perry Scouting For Girls Needtobreathe Echosmith He Is We Jordan Pruitt Jason Derulo