Input (grade 10): John Henry Bonham (31 May 1948 â "25 September 1980) was a British musician and songwriter, best known as the drummer of Led Zeppelin.
Output (grade 7): John Henry "Bonzo" Bonham (May 31 1948 â "September 25, 1980) was an English rock drummer. He was best known for being a member of London hard rock band Led Zeppelin.