Fleetwood Mac were formed in 1967 in London when Peter Green left the British blues band John Mayall & the Bluesbreakers. Green had replaced guitarist Eric Clapton in the Bluesbreakers, and received critical acclaim for his work on their album "A Hard Road". After he had been in the Bluesbreakers for some time, Green asked if drummer Mick Fleetwood could replace Aynsley Dunbar. Green had been in two bands with Fleetwood — "Peter B's Looners" and the subsequent "Shotgun Express" (which featured a young vocalist named Rod Stewart). John Mayall agreed and Fleetwood became a member of the band.
The Bluesbreakers now consisted of Green, Fleetwood, John McVie and Mayall. Mayall gave Green free recording time as a gift, in which Fleetwood, McVie and Green recorded five songs. The fifth song was an instrumental which Green named after the rhythm section, "Fleetwood Mac".
