The Big Three were a Merseybeat group from Liverpool. They are best known for their 1963 recording of "Some Other Guy".The Big Three evolved from a group called Cass & The Cassanovas, formed in May 1959 by Brian Casser as a trio comprising Casser (rhythm guitar, lead vocals), Adrian Barber (lead guitar, vocals), and Brian J. Hudson (drums). The original line-up played at St George's Hall, Liverpool, on Friday, 15 May 1959. Johnny 'Hutch' Hutchinson replaced Hudson in July 1959. In need of a bass guitarist, Hutchinson brought in Johnny Gustafson in December. At that time, Gustafson did not have a proper bass guitar, so Barber converted an acoustic for him. Gustafson's first gig was at The Tower Ballroom, New Brighton, on Thursday, 31 December 1959.