The Yardbirds are an English rock band formed in London in 1963. The band started the careers of three of rock's most famous guitarists: Eric Clapton, Jeff Beck and Jimmy Page, all of whom ranked in the top five of Rolling Stone magazine's list of 100 greatest guitarists. The band's other members during 1963-1968 were vocalist/harmonica player Keith Relf, drummer Jim McCarty, rhythm guitarist Chris Dreja, and bassist Paul Samwell-Smith, with Dreja switching to bass when Samwell-Smith departed in 1966. The band had a string of hits throughout the mid-1960s, including "For Your Love", "Heart Full of Soul", "Shapes of Things", and "Over Under Sideways Down".
Originally a blues-based band noted for their signature "rave-up" instrumental breaks, the Yardbirds broadened their range into pop, pioneered psychedelic rock and early hard rock, and contributed to many electric guitar innovations of the mid-1960s. Some rock critics and historians also cite their influence on the later punk rock, progressive rock, and heavy metal trends. Following the band's split in 1968, Relf and McCarty formed Renaissance and Page formed Led Zeppelin.