The number one hit "Living Doll" was written by the composer of which musical?

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 musicals had dominated the West End. Best known for creating the book, music and lyrics for Oliver!, he was described by Andrew Lloyd Webber as "the father of the modern British musical". In 1963 he won the Tony Award for Best Original Score for "Oliver!", and the 1968 film version of the musical won a total of 6 Academy Awards including the Academy Award for Best Picture.

He first gained widespread recognition through his pop songwriting, penning numerous hits for the stable of young male singers promoted by artist manager and music publisher Larry Parnes. Bart's pop output in this period includes the hits "Living Doll" (written for Cliff Richard) and "Rock with the Cavemen", "Handful of Songs", "Butterfingers" and "Little White Bull" (for Tommy Steele).