Coldplay are selling kit from their 10-year career on eBay for charity.
The band are calling it their 'End Of Decade Clearout Sale' and fans will be able to buy stuff like guitars, keyboards, amps, and posters.
Bidding on the gear starts on Thursday 17 December at 5pm, and the band are giving the cash they raise to the charity Kids Company.
The band say all the kit will either be signed by Coldplay, or come with a certificate to prove it's genuine.
Coldplay have released four albums in their 10-year career, three of them shot straight to number one.
Millions of their records have been sold around the world, and they've won a bagful of music awards at the Brits and the Grammys.