'In Liverpool everybody wanted to be in a band. On every street corner and in every cellar there were young fellas practising with guitars. But it was rare to see any girls on the new Merseybeat scene. It was inevitable that we would find each other . . .' 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 scepticism, they won over tough crowds, toured stadiums, recorded two hit albums, and played with the Kinks, Rolling Stones and Chuck Berry - all in the space of just five years. Now, the two surviving members of the band tell their incredible story in full for the first time - capturing a lost era of liberation and rock'n'roll, as they thrived in the vibrant Merseybeat music scene and formed a friendship that has endured through the decades.