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Anyone who watched "The Fresh Prince of Bel-Air" in the '90s likely still remembers every word to the sitcom's catchy intro, and Will Smith is no different.
When Smith visited "The Ellen DeGeneres Show" on Tuesday to discuss his latest movie, "Focus," he surprised fans by rapping the lyrics to the beloved TV theme song.
The 46-year-old actor, who played a West Philadelphia teen sent to live with his wealthy West Coast relatives on the long-running NBC series, asked the audience to join in as he performed.
"This is how we know if we've got real fans in the house," he told the enthusiastic crowd.
Just three weeks ago, Jimmy Fallon offered his own re-creation of the song, when the "Tonight Show" made a weeklong move from New York to Los Angeles.
This article was originally published Feb. 24, 2015 at 7:24 p.m. ET.