Margaret Bell is a Scottish vocalist. She came to fame as co-lead vocalist of the blues rock group Stone the Crows, and was described as the UK's closest counterpart to American singer Janis Joplin. Bell was also prominently featured as a guest vocalist on the song "Every Picture Tells a Story" (1971) by Rod Stewart.

Colin Hodgkinson is a British rock, jazz and blues bassist, who has been active since the 1960s.