Crowdsurfing, eh? Sure, it might look like a lot of fun - but it can be a perilous activity, too.
Rapper Young Thug found that out the hard way at a gig on Sunday night after launching himself into the crowd in New York.
As the video below shows, initially he's kept aloft before being dropped by the crowd, landing on his head. A friend dives in and comes to his aid, while his fellow performers urge the surging crowd to 'Help him up!'
Watch it below:
