Led Zeppelin frontman Robert Plant has said that he rejected a cameo because he doesn't want to be "typecast"
led zeppelin
Randy Wolfe of the band Spirit had claimed that the 1971 mega-hit violated the copyright of a 1968 song called Taurus
“Taurus”, an instrumental written by Spirit guitarist Randy California -whose real name was Randy Wolfe- was originally released three years before “Stairway”