And then the Holy Gibson said : "One of you will betray me"

That idea sounded like the best, but unfortunately I don't have mad skillz enough to draw very likely rock stars.

Anyway, from left to right : St Mick, St Sid, St Elvis, St Syd, Marylin (as Judas, in a kind of hommage), St Janis, the Holy Gibson, St Chuck, St Kurt, St John, St Jimi, St Jim, and St Freddy.
People chosen mostly among the martyrs of rock, although some still living have been allowed (Mick Jagger for iconism, Marylin Manson for playing Judas, Chuck Berry for pretty much inventing Rock 'n Roll).

Done, of course, after Da Vinci's Last Supper, with influence from *yellowworm's absolutely kick ass and far more mad skilled rendition of the painting : [link]