Lionel Bart (1 August 1930 – 3 April 1999) was a British writer and composer of pop music and musicals. He wrote Tommy Steele's "Rock with the Caveman", which became the first British pop song to break into the American Top 40, and was the sole creator of the musical Oliver! (1960). With Oliver! and his work alongside theatre director Joan Littlewood at Theatre Royal, Stratford East, he played an instrumental role in the 1960s birth of the British musical theatre scene after an era when American ...