Now this is a story all about how… Will Smith will be appearing on The Graham Norton Show on Friday 17 May to (chat about his four-year absence from acting, his film-star son and pop-star daughter, his upcoming new movie Men in Black 3 and blah, blah, blah) perform a live version of the intro to The Fresh Prince of Bel-Air.

Tom Jones and Gary Barlow will also be guesting but for fans of seminal US ‘90s sitcom theme tunes, it's all about this...