Alice Cooper, The Darkness, Three Days Grace, 311 and Tom Morello will also play the August rager.
Morat and Sebastián Yatra are now performing on Saturday, according to a statement.
Lenny Kravitz, Sublime, Cage the Elephant, Vampire Weekend and Public Enemy will also perform in Atlanta's Piedmont Park this September.
The performances are part of the international festival that begins Feb. 23. Watch it on Billboard here.
The August 1-3 fest in Montreal will also feature Glass Animals, Doechii, Gracie Abrams, Chainsmokers, Shaboozey and Jamie XX.
Def Leppard, Hozier and James Taylor will also headline at the three-weekend bash along Lake Michigan.
Guitarist Claudio Narea of Los Prisioneros fame, as well as Miss Chile 2024 Emilia Dides and others set to judge.
The "Rock and A Hard Place" hitmaker directly addressed the performance, telling fans, "I'm going to do everything in my power to make sure that this never happens ever again."
The 11th edition of the festival happened at Miami's Mana Wynwood on Oct. 17-18. "Everyone was really synced up," III Points co-founder David Sinopoli says.
The actor will return to the stage for the July 31 show at the Roman Theatre of Orange.
