作词 : Toni Jordan Perret/Luís Pinto EEYUH! EEYUH! EEYUH! EEYUH! EEYUH! EEYUH! EEYUH! Back it up! EEYUH! (Back it up!) EEYUH! EEYUH! EEYUH! EEYUH! Back it up! Back it up! EEYUH! EEYUH! (Back it up!) Back it up!