Not That Well-Defined

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