**(Previously published under the title 'The Liverbirds')In the early '60s, four friends from Liverpool formed a band. But this is not the 'fab four' story we know . . .**Mary, Sylvia, Valerie and Pamela - also known as The Liverbirds - were one of the world's first all-female rock'n'roll bands. At an early gig, backstage at the Cavern Club, a young John Lennon told them that 'girls don't play guitars'. But they took that as a challenge. Despite the early scepticis...