"The Plastic Ono Band"
After The Beatles had broken up (due mostly to Lennon's marriage), Lennon wasn't quite done being influential. He formed a new short-lived band with Yoko. Known as "The Plastic Ono Band", they released very few songs before the band was forced to break up as a key member died. This member was John Lennon, who was murdered outside of his home by Mark David Chapman who, oddly enough, was quite a fan of his.