Scott Joplin was an American composer and pianist who is best known for his ragtime compositions. His tunes, often referred to as 'RAGS', were popular during the late 19th and early 20th centuries. His most famous ragtime composition is 'The Entertainer'. Other popular RAGS composed by Joplin include 'Maple Leaf Rag', 'Elite Syncopations', and 'The Chrysanthemum'. Joplin's music has been featured in films such as The Sting and The Great Gatsby. His influence on jazz and popular music is still felt today.