 They had both been members of The Hollywood Flames, a prolific doo-wop group in Los Angeles, California whose major hit was "Buzz-Buzz-Buzz" in 1958, on which Nelson sang lead.By 1957, Byrd had started a parallel solo career, writing and recording for contractual reasons as Bobby Day.He wrote and recorded the original version of "Little Bitty Pretty One", and had a hit of his own with "Rockin' Robin" (1958).