PHOTOS

Telephone - Cover of Lady Gaga feat Beyoncé Glee Cast Teenage Dream Katy Perry Last Friday Night (T.G.I.F.) Katy Perry Lush Life Zara Larsson The One That Got Away Katy Perry Style Taylor Swift Judas Lady Gaga The Sweet Escape Gwen Stefani, Akon Toxic Britney Spears Locked out of Heaven Bruno Mars Love You Like A Love Song Selena Gomez & The Scene Paparazzi Lady Gaga Oops!...I Did It Again Britney Spears Maneater Nelly Furtado All The Things She Said t.A.T.u. thank u, next Ariana Grande Pink Pony Club Chappell Roan Sign of the Times Harry Styles Espresso Sabrina Carpenter no tears left to cry Ariana Grande Telephone - Cover of Lady Gaga feat Beyoncé Glee Cast Teenage Dream Katy Perry Last Friday Night (T.G.I.F.) Katy Perry Lush Life Zara Larsson The One That Got Away Katy Perry Style Taylor Swift Judas Lady Gaga The Sweet Escape Gwen Stefani, Akon Toxic Britney Spears Locked out of Heaven Bruno Mars Love You Like A Love Song Selena Gomez & The Scene Paparazzi Lady Gaga Oops!...I Did It Again Britney Spears Maneater Nelly Furtado All The Things She Said t.A.T.u. thank u, next Ariana Grande Pink Pony Club Chappell Roan Sign of the Times Harry Styles Espresso Sabrina Carpenter no tears left to cry Ariana Grande