Rainbow Biography (Wikipedia)
Rainbow (also known as Ritchie Blackmore's Rainbow or Blackmore's Rainbow) are a British rock band led by guitarist Ritchie Blackmore, active from 1975 until 1984, 1993 until 1997, and 2015 until present. They were originally established with Ronnie James Dio's American rock band Elf, but after their first album, Blackmore fired the backing members and continued with Dio until 1979. Three British musicians joined in 1979 - singer Graham Bonnet, keyboardist Don Airey and then-former Deep Purple bassist Roger Glover - and this line-up gave the band their commercial breakthrough with the single "Since You Been Gone". Over the years Rainbow went through many personnel changes with no two studio albums featuring the same line-up. The singers Joe Lynn Turner and Doogie White followed Bonnet, and numerous backing musicians have come and gone.
A pioneer of power metal, the band's early work primarily featured mystical lyrics with a neoclassical metal style, but went in a more streamlined, commercial direction following Dio's departure from the group.