Mickey Finn or occasionally Micky Finn (born Michael Norman Finn, 3 June 1947 — 11 January 2003) was the percussionist and sideman to Marc Bolan in his band Tyrannosaurus Rex (on one album, A Beard of Stars), and later, the 1970s glam rock group, T.Rex. Often confused with other musicians by the same name, Michael Norman Finn (apart from T. Rex) only toured as a sideman in the 1960s with Hapshash and the Coloured Coat. After Bolan and T.Rex's demise, he worked as a session musician for The Blow Monkeys and The Soup Dragons.
Finn was born in Thornton Heath, Surrey, England. After he joined T.Rex in late 1969, it was rumored that Bolan had hired Finn for his good looks, and because he admired his motorcycle, rather than for his musical ability. Finn was unable to recreate the complex rhythmical patterns of his predecessor, Steve Peregrin Took, and was effectively hired as much for a visual foil for Bolan as for his drumming. The BBC news commented on this, saying "Marc Bolan was supposed to have said of Finn: 'He can't sing... but he looks superb.'"