Not to poop on your platter, but I think a better way to go would be to lean into comedy so the pre-show (post-shocker) is more intentionally enjoyable. Start with reasonably funny actors posing as The Most Important Band of All Time, recording a new track but they're on various video displays in the recording studios, working remotely, because they can't stand to be in the same room with each other. Guys like Paul Rudd, Jack Black, Zach Galifianakis...they're on the verge of breaking up, the recording engineer leaves to have a nervous breakdown. Young PAs and interns in the studio who have their own band talk them off the ledge, and keep them together. As a thank-you, these young guys get to go to their special Farewell-Concert-turned-We're-Back concert...but all the time they spent fighting means they have to haul butt to the stadium.