Rainbow, aka Ritchie Blackmore's Rainbow or Blackmore's Rainbow, are a rock supergroup, formed during 1975 in London & Los Angeles by guitarist Ritchie Blackmore. They were originally established with 1/2 of the members of frontman Ronnie James Dio's previous band Elf, but after their eponymous debut L.P., Ritchie sacked the backing members. Ronnie recorded a couple more studio albums with Rainbow-Rising (1976) then Long Live Rock 'n' Roll (1978),...