Jimmy Fallon March 23, 2018 3:09 am ‘Tonight': History of TV Theme Songs With Will Smith Will Smith and Jimmy Fallon perform a live remix of some of the best sitcom theme songs of all time, including Will’s classic “Fresh Prince” theme. US & World Videos 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 2:28 King Charles returns to public duties amid cancer diagnosis 1:39 Benny Blanco talks falling in love with Selena Gomez 1:20 Kate Middleton and Prince William share never-before-seen pic on 13th wedding anniversary