Related Information for Fourmost Lead guitarist / singer Brian O' Hara and bass guitarist / singer Billy Hatton, friends since Grammar school, formed The Blue Jays in 1958. The group changed their name to the Four Jays, and made their debut at the Cavern Club on March 1, 1961, nearly three weeks before The Beatles. Rhythm guitarist / singer Mike Millward joined the Four Jays in November 1961, followed by the drummer / singer Dave Lovelady in September 1962. In the summer of 1963, the group – now called The Fourmos.. read more