Cozy Powell (b. Colin Flooks) was a drummer for The Jeff Beck Group, Rainbow, Whitesnake and Black Sabbath. However, in 1974-75 he also enjoyed reasonable success as a solo artist with a self-formed band of session players aptly called ‘Cozy Powell’s Hammer’. Na Na Na was the best-selling UK single, reaching No. 10 when released in 1974.
Cozy Powell’s Hammer included Bernie Marsden (guitar), Clive Chaman (bass), Don Airey (keys) and Frank Aiello (vocals). Cozy Powell passed away aged just 51 following a car crash in 1998.