Not T-Rex, but the earlier incarnation of the band, when they were still called Tyrannosaurus Rex. Marc Bolan is seen here with percussionist Steve “Peregrin” Took, performing “The Seal of the Seasons” from their 1969 Unicorn album.

After an American tour where the decidedly much more “party hardy” Took, well, partied heartily, Bolan sacked Took, replaced him with Mickey Finn and promptly became an internationally recognized superstar. Took immediately went off to work with more underground and anarchic types like Twink (from The Pretty Things) and Mick Farren (who’d been ousted from his band, The Deviants), forming a proto-version of what became The Pink Fairies.