Born and raised in London, the Beatles perked a teenage Simon's interest in rock music, and he picked up the drums - leading to a gig with a local band called the Maniacs, on which Simon supplied drums and lead vocals (something quite uncommon at the time).
Simon worked out a deal with his parents after graduating high school, that if he couldn't "make it" as a drummer in a band within a two-year period, that he would begin a college career. Just a few months before the deadline, Simon landed a gig with a group called the Black Cat Bones. The drummer befriended the group's talented guitarist, Paul Kossoff, who in turn convinced Simon to leave the group with him and begin a new outfit with singer Paul Rodgers. Soon ex-John Mayall's Bluesbreakers bassist Andy Fraser signed on and Free was officially formed in 1968. Mixing blues with hard rock, the group would prove to be quite influential, especially on the strength of their classic 1970 release, Fire and Water, and its strutting, anthemic hit single, "All Right Now."
When the band broke up, it didn't take Simon long to find another gig, joining Paul Rodgers in a new band, Bad Company, which was quite similar stylistically to Free. Joined by ex-King Crimson bassist Boz Burrell and ex-Mott the Hoople guitarist Mick Ralphs, Bad Company was the first group signed to Led Zeppelin's record label, Swan Song. Their debut album, 1974's Bad Company, would go on to become one of hard rock's all-time classics, as it birthed such long-standing rock radio standards as "Can't Get Enough," "Ready for Love," and the title track, written by Paul and Simon himself. The group hails as one of the all-time top rock outfits. Simon Kirke is the only member of Bad Company who’s been in every lineup of the band.