L'équation #2

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