Before going to a music concert, what are the kinds of things you don't want to forget? The poster you made or your camera phone maybe... But what about your swimming goggles?
Well, check out this gig with a difference - it takes place in a swimming pool with the music booming out from speakers underwater and above water!
Listening to music underwater sounds different because sound travels around four times faster through water compared to through air.
Some underwater concert-goers with hearing problems have said they found it easier to listen to the music underwater.
The unusual art project, called Wet Sounds, is touring swimming venues around the UK.
Watch Ricky's report for more.