that kid wasn't picked out of the seats, he was called by Vedder who had seen his band play. That commenter is making stuff up. "Josh" is Josh Klinghofer who was already on the tour with them and stepped in to play drums after Cameron got COVID. third drummer was a music teacher from the Bay Area that Vedder is friends with.
― akm, Saturday, 14 May 2022 18:52 (two years ago) link