Bad (song)

"Bad" was a 1987 hit recording by pop legend Michael Jackson. The song was one of his signature songs and one of five #1 hit singles off the album of the same name. The song was originally tended to be a duet with his then-rival Prince but the funk icon declined because, according to album producer Quincy Jones, the song was a hit even without him. The line Who's bad became a popular catchphrase.