Jesus Christ Superstar
Hair flying all over the place, smokin hot hippie chicks WHO ARE CHRISTIANS, pipes, bongs, and rolling papers at the Last Supper (also implied, in the song lyrics, is they ate mushrooms), and a BITCHIN soundtrack with weird songs with all sorts of impossible time signatures, heavy HEAVY riffage like a cross between a 1969 version of Jane's Addiction and Mars Volta... PLUS you have an INSANE amount of trippy dashiki-wearing scantily-clad hippie chicks walking around Israel stoned out of their frickin minds PRAISING THE NAME OF JESUS.
Deal with it
THIS is the dubbed-in version of Ian Gillian (who was the singer for Deep Purple) on vocals - MUCH better version when he hits that high note like Robert Plant
There was also some involvement by the drummer for the Grateful Dead and David Crosby or something.
EDIT: The lead guitarist for the album was originally with Joe Cocker's band
The other guitarist jammed with Paul McCartney as a solo artist and also played with Humble Pie, Fairport Convention, and eventually Stealers Wheel
The keyboard/piano player jammed with Clapton for a while
The drummer was the drummer from Joe Cocker's band from Woodstock and played with Rolling Stones guitarist Ron Wood
The bass player played with freakin EVERYONE during that time, Frampton, Joe Cocker, and Ted Nugent among others