Yes, Steve Calrow sang with The Beatles in the spring of 1961. Bob Wooler had begun to introduce The Beatles at The Cavern Club. They had made their lunchtime debut on 9 February 1961 and their first evening performance was on 21 March 1961. Between these two dates, and before Stuart returned to Hamburg on 15 March 1961, Steve Calrow, a local performer who Wooler had seen at Holyoake Hall, made a brief appearance at The Cavern with The Beatles.
Along with John, Paul, George, Stuart and Pete, Steve was called into action to help out with the singing as The Beatles could hardly talk, let alone sing, after a grueling 14 days performing. “I knew Paul and George more than I knew John but we all lived around the same area, which is why I think they worked so well together because they knew each other well.”
Find out more in “The Fab one hundred and Four: The Evolution of The Beatles” at http://www.fab104.com