The band will be performing acoustically during the event which is being held in their hometown Atlanta, Georgia.
Fourteen new names have been added to the line-up across the weekend.
The track features on the band's upcoming live album, 'At The Mill'.
The Toronto four-piece will release their debut album in October - check out their new video here!
The fifth annual Heavy Music Awards take place this September - voting is now open!
The shows will take place in smaller than usual venues, for an intimate and special experience.
The band will release their self-titled seventh album in October - read on for more details.
Frank Turner & The Sleeping Souls, Alkaline Trio, Funeral For A Friend and more have been added to the bill.
The Brighton duo will tour the UK and Europe in early 2022.
The band will be performing their second album 'The Greatest Mistake Of My Life' in full.