"Billie Jean" is a song by American singer Michael Jackson. It is the second single from the singer's sixth solo album, Thriller (1982). It was written and composed by Jackson and produced by him and Quincy Jones. There are contradictory claims on the meaning of the song's lyrics. One suggests that they are derived from a real-life experience, in which a female fan claimed that Jackson (or one of his brothers) had fathered one of her twins. However, Jackson himself stated that "Billie Jean" was based on groupies he had encountered. The song is well known for its distinctive bassline played by Louis Johnson and Jackson's vocal hiccups. The song was mixed 91 times by audio engineer Bruce Swedien before it was finalized, though he reportedly went with the 2nd mix as the final product.