The future Motorhead founder joined Hawkwind in 1972, playing bass even though he'd only previously played guitar. He fronted the band for their biggest hit, Silver Machine, but he was fired in 1975 after being arrested for drugs possession on tour in Canada.

He went on to form the outfit that made his name later that year - and bad feelings didn't last between the bands. Brock says: "So very sad to wake to the news that we have lost Lemmy. I'll miss him, and especially our eccentric text conversations of recent years."