Slam Dunk have confirmed that Don Broco and Sum 41 will be headlining next year's festival, following them being unable to headline it this year.
They join the already announced NOFX, Pennywise, Me First And The Gimme Gimmes, Reel Big Fish, The Vandals, Face To Face, Comeback Kid, Days N Daze and The Baboon Show.
They will be playing Leeds Temple Newsam on May 29 and Hatfield Park on May 30.
Here's a full statement from the festival:
"We are overwhelmed by the support you have shown by keeping hold of your tickets for next year, so many thanks to you all. We are glad to say that the line-up will remain very similar to the one that you bought your tickets for, and we should be able to bring you more announcements soon.
Today we are pleased to say our 2020 headliners are confirmed to return for 2021! #SDF2021 will be headlined by Sum 41 & Don Broco. Add to that the previously announced return of NOFX and their Punk In Drublic Stage!
Thank you for your patience on this, we are currently busy confirming up the rest of the line-up and hopefully will be able to announce this in the next few weeks."