Panic! At The Disco Announced For BBC's The Biggest Weekend
They are on there together with Thirty Seconds To Mars, Demi Lovato, Taylor Swift and a lot of other massive artists.
The event will take place from May 25th - 28th and Panic! At The Disco will play Sunday the 27th in Swansea, Singleton Park on Radio 1's Other stage.
Check for more information and the announcement tweets below.