The four One Direction boys have been all over the world during their On The Road Again tour, and to keep things fresh they often throw in a surprise addition to their set.
Given their location, last night in Philadelphia (1 September) there was only one possible track to cover, the 90s anthem 'Fresh Prince Of Bel-Air' made famous by Will Smith in the Fresh Prince.
All together now: "In West Philadelphia born and raised..." The boyband members became rappers for about a minute, cue screams from the delighted crowd, who were either all big Fresh Prince fans or (more likely) just generally beside themselves with excitement to be at a 1D concert.
"We didn't think that through. We needed to rehearse it!" complained Niall afterwards. The boys actually did an impressive job for an impromptu sing-along, you should hear our karaoke!
Harry Styles wasn't impressed either, joking: "It wasn't clean!" before chucking his microphone to the stage floor in mock frustration.
Jokers, great rappers, and potential future X Factor judges these boys have it all.
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