Liam Payne is working with cancer charity Trekstock again and has an amazing offer for One Direction fans.
He tweeted the big news, writing: "Great to be working w/ @trekstock on an incredible charity event! Get involved & win amazing prizes http://prizeo.com/onedirection #Trekstock1DPrize"
One lucky winner (and a friend!) will be flown to London to meet One Direction backstage, plus get VIP passes to their concert.
Liam wrote on the Trekstock website: "We wouldn't be here without all of you and your incredible support, and with your help, we think we can all make a difference to the lives of young adults diagnosed with cancer."
We're always so proud of the work the 1D guys do for charity. Check out Liam, Louis, and Niall at Trekstock's Great Gatsby Ball - and Liam's lovely date, girlfriend Sophia Smith.