For a 50 Cent single called "My Life" (G Unit/Shady), there is a distinct lack of Fiddy here. Between Adam Levine's singing of the hook and Eminem's show-stealing verse, where he convincingly swings between keeping it together and coming unhinged, it's pretty easy to forget whose single this really is. But in true Fiddy style, that hardly matters since the song works and everyone's getting paid. Wonder what this means for the upcoming album.