Eternally the good sport, Will Smith [1] appeared on The Ellen DeGeneres Show and rapped the lyrics to The Fresh Prince of Bel-Air [2]'s theme song. He's making the rounds promoting Focus, and since he rapped "Gettin' Jiggy Wit It" [3] on Late Show With David Letterman last week, he's presumably looking to top himself every time he's in public. What else can he do? Will he enlist Kevin Klein for a rendition of "Wild Wild West" for Jimmy Kimmel on Wednesday? Fingers crossed.