Claim: John Lennon was a member of a rock band.
Evidence: John Winston Ono Lennon , -LRB- born John Winston Lennon ; 9 October 19408 December 1980 -RRB- was an English guitarist , singer , and songwriter who co-founded the Beatles , the most commercially successful and musically influential band in the history of popular music.
The Beatles were an English rock band formed in Liverpool in 1960.