A novelty song is a comical or nonsensical song, performed principally for its comical effect. Humorous songs, or those containing humorous elements, are not necessarily novelty songs. The term arose in Tin Pan Alley to describe one of the major divisions of popular music. The other two divisions were ballads and dance music. Novelty songs achieved great popularity during the 1920s and 1930s. They had a resurgence of interest in the 1950s and 1960s.