Fifth Beatle Pete Best He was the drummer for the Beatles in their early days in Liverpool and Hamburg. His mother, Mona Best, was the owner of The Casbah Coffee Club in Liverpool. The various early incarnations of the Beatles played the Casbah more than 90 times. Best has co-written a large format book The Beatles: The True Beginnings (by Roag Best with Pete and Rory Best). Today he writes, records and tours with his own group, The Pete Best Band.