Ballad opera began in 18th century England as a form of popular entertainment featuring music, costumes, and stories depicting romance and betrayal performed by amateur companies. It differed from Greek theater in its use of contemporary music and inclusion of sex and rough aspects of life. The most famous ballad opera is The Beggar's Opera from 1728 about a highwayman who loves two women and is ultimately arrested. The purpose of ballad opera was to entertain audiences with musical stories that commented on everyday life and characters.