 Complete the following phrase:  Also in 1956, Earle and Vaughan made their debut at the London Palladium in The British Record Show, and in January 1957 they appeared on ITVs Sunday Night at the London Palladium. Later in 1957 Vaughan appeared in that years Royal Variety Show alongside other 1950s stars, including Ronnie Hilton, Dickie Valentine and David Whitfield. In 1960, he took part in the national preselection to represent the United Kingdom in 