6:37am PT by Ashley Lee
Watch Will Smith Perform the 'Fresh Prince of Bel-Air' Theme Song on 'Ellen' (Video)
Will Smith has a knack for rapping during TV appearances.
Just days after spontaneously leading the Late Show With David Letterman audience in a good ol' fashioned sing-along to his entrance music, "Gettin' Jiggy Wit It," he stopped by The Ellen DeGeneres Show and did the same with the theme song to The Fresh Prince of Bel-Air.
"Now this is how we know if we've got real fans in the audience," he said of knowing the lyrics to his '90s sitcom rap.
Watch Smith's performance below.