Gene Kelly was an American dancer, actor, singer, film director, producer, and choreographer who was one of the most influential figures in the history of film. He is best known for his performances in the musical films of the 1940s and 1950s, such as An American in Paris and Singin' in the Rain. He was a major star at Metro-Goldwyn-Mayer (MGM) during this time, and his work with the studio helped to revolutionize the Hollywood musical.