In case ya didn't realize that he's a pretty big deal, Spencer Pratt (gangsta alias: "The Great White") has proudly just released A RAP SONG proclaiming his international fame. To our delight and surprise, "I'm a Celebrity" debuted on Ryan Seacrest's KIIS-FM radio show this morning -- and it's nothing short of highly memorable. Take a listen to the tune, then vote in our poll whether Spencer's got a real shot of making it in the hip-hop industry!