Bruno Mars is on his 4th single from his latest album Unorthodox Jukebox. The song is called "Gorilla" and the music video is hot.

So why the gorilla on the Unorthodox Jukebox album cover? I guess now we know. Mars explained to MTV News that the primate is there because, "that was the first song we wrote for this album and it really set the tone for the entire project and it kind of became the mascot. Why not put it on the cover?"