With their debut single "One Summer Night," the Danleers became one of the most successful vocal groups of the late '50s. Written by the group's songwriter/manager Danny Webb and recorded during their first recording session, the tune reached the pop Top Ten and sold over a million copies. The Danleers were one of many vocal groups that arose out of the street corners, playgrounds, and tenement hallways of Brooklyn. Originally a quintet, featuring lead singer Jimmy Weston, baritone singer Nat McCune, bass vocalist Roosevelt Mays, and tenors Johnny Lee and Will Ephraim, the band's sound was reinforced by the addition of Webb.