The Wanted One Direction Justin Bieber Union J Nick Jonas Jls Joe Jonas Selena Gomez Nick Jonas And The Administration 5 Seconds Of Summer The Saturdays Little Mix Shontelle Lawson Zac Efron Taio Cruz Blake Mcgrath The Script Emblem 3 Vanessa Hudgens Katy Perry Mc Fly Ke$Ha Maroon 5 All Time Low Taylor Swift Before You Exit He Is We Conor Maynard Becky G Chester See Midnight Red Busted Ed Sheeran Jason Derulo Justice Crew Birdy Karmin We The Kings Lemonade Mouth Cover Drive Carly Rae Jepsen Hollywood Ending Scatman Nicki Minaj Colbie Caillat The Maine Paramore Jay Sean