Fleetwood Mac

They formed as a blues band, reliably selling about 250,000 copies of every album until their 1975 self-titled effort, which was the first to include Lindsey Buckingham and Stevie Nicks. That album sold over 5 million copies and introduced the group configuration that made them one of the most popular bands in the world, selling well over 100 million albums.

Peter Green named the band after Mick Fleetwood and John McVie, but McVie didn't join the band until four months after they formed, as he was playing with The Bluesbreakers at the time. Green wanted to stay out of the spotlight, which is why he named the band after the rhythm section.

Fleetwood, Green, and McVie were all disciples of blues guitarist John Mayall.