The three-vinyl set includes brand new André 3000 cover art, unreleased photos taken during their promotional run in 2000, and other merch.
She also teased a snippet of a new song.
The two Swedish rappers and long-time friends surprised fans today with the new track and video.
All tickets will be automatically refunded.
Kneecap, who had been scheduled to perform in Toronto this October, addressed their fans, urging them to “stand up and speak out.”
In RAYE's words, "WHAT IS TAKING HIM SO LONG TO FIND ME?"
The dog days are just beginning.
"I hope knowing I will no longer be making or performing art brings some peace to the people who feel let down."
The 400+ signatories include Massive Attack, Amyl and the Sniffers, MIKE, MJ Lenderman, Wednesday, Faye Webster, King Krule, Oklou, Mannequin Pussy, and more.