May 19, 1968:

Tyrannosaurus Rex played at Middle Earth for Gandalf's Garden Benefit

John Peel was Host and among the other artists performing were David Bowie.

Gandalf's Garden was a mystical community which flourished at the end of the 1960s as part of the London hippie/underground movement running a shop and a magazine of the same name

It emphasised the mystical interests of the period, and advocated meditation in preference to drugs.