Uriah Heep is a British rock band, officially formed in 1969 in London, England, when record producer Gerry Bron invited keyboardist Ken Hensley (previously a member of The Gods and Toe Fat) to join Spice, members of whom included soon-to-become Heep stalwarts David Byron (vocals) and Mick Box (guitar). The band rapidly grew to become a seminal classic hard rock act of the 1970s and beyond. Their distinctive progressive/art rock/heavy metal fusion has always featured a massive keyboards sound