Final answer:
John Lennon, Harry Nilsson, Alice Cooper, and Micky Dolenz were known collectively as the Hollywood Vampires.
Step-by-step explanation:
The statement is True. John Lennon, Harry Nilsson, Alice Cooper, and Micky Dolenz were indeed known collectively as the Hollywood Vampires.
The Hollywood Vampires was originally a drinking club formed in the 1970s in Los Angeles, consisting of various rock musicians. It later evolved into a supergroup with Alice Cooper, Johnny Depp, and Joe Perry.