Whose song is Word Up (Radio Mix)?

Artist		Album
GUN		Word Up Word Up (CD 1) Word Up (Cd1)
Gun		Word Up (disc 1)
GUN		Word Up (Disc 2) Word Up [CDM] Word Up [CDS] Word Up [EU] [Maxi]
Various Artists		Now That's What I Call Music! 1994 The Coolest Rock Album Ever