The LiverbirdsIn 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 scepticism, they won over tough crowds, toured stadiums,