Rock music originated in the late 1940s when electric guitars and steady drum beats changed the sound of country and blues music. The genre was influenced by rhythm and blues, jazz, and classical music. In the 1960s, the "British Invasion" brought British rock bands like the Beatles and Rolling Stones to international popularity. Iconic rock artists from this era included Elvis Presley, Buddy Holly, and Tommy Steele. Over time, rock music evolved stylistically and rock artists embraced more diverse clothing styles and attitudes to match the changing genre.