NIN would be the opening act (NIN from about 1999-2000 after Reznor released “The Fragile”, the last great NIN album)
Rage Against the Machine would be the next act (from about 1996-1997, when the released “Evil Empire”)
After that, the Jimi Hendrix Experience.
The headliner would be Led Zeppelin. I’m thinking Led Zeppelin from early 1971, when they were still really raw-sounding but not TOO raw and had maybe been working on stuff from the untitled 4th album but hadn’t released it yet, but had worked the material out enough to play Black Dog and When the Levee Breaks live.
Due to an unfortunate fist fight between Brad Wilke and Mitch Mitchell backstage, in which both of them broke both of their arms, John Bonham would have to sit in on drums for Rage and the Experience. Led Zeppelin’s multiple encores would feature Jimmy Page playing rhythm, Jimi Hendrix on lead guitar and Tom Morello making some weird noises with his guitar, Robert Plant still on vocals, John Paul Jones on a Fender Rhodes Piano and Tim Commerford on bass while covering NIN tunes.
That would be Fucking Awesome.
That would be mind-blowing.