Roots of Bachman–Turner Overdrive

Buffalo Springfield was a Canadian-American rock band formed in Los Angeles in 1966 by Canadians Neil Young, Bruce Palmer and Dewey Martin and Americans Stephen Stills and Richie Furay. The group, widely known for the song "For What It's Worth", released three albums and several singles from 1966 to 1968. Their music combined elements of folk music and country music with influences from the British Invasion and psychedelic rock. Like the contemporary band the Byrds, they were key to the early development of folk rock. The band took their name from a steamroller parked outside their house.

Thin Lizzy were an Irish rock band formed in Dublin in 1969. The band initially consisted of bass guitarist, lead vocalist, and principal songwriter Phil Lynott, drummer Brian Downey, guitarist Eric Bell, and organist Eric Wrixon, although Wrixon left after a few months. Bell left at the end of 1973 and was briefly replaced by Gary Moore, who himself was replaced in mid-1974 by dual lead guitarists: Scott Gorham, who remained with the band until their break-up in 1983, and Brian Robertson, who remained with the band until 1978 when Moore re-joined. Moore left a second time and was replaced by Snowy White in 1980, who was himself replaced by John Sykes in 1982. The line-up was augmented by keyboardist Darren Wharton in 1980.