"Baby Did a Bad Bad Thing" is a song by American musician Chris Isaak, released as the first track to the 1995 album Forever Blue. Filled with sensuality and erotic imagery, the song was described by Isaak as a declaration to "somebody who is so evil and twisted and bad, and yet, you still want them". The title evokes how "That’s a bad bad thing" is used by both parents scolding misbehaving children and adults during sexual intercourse. In September 1999, a remix of the song peaked at number nine on the Australian ARIA Singles Chart, outperforming the number-27 peak of the original. In the United States, the 1999 reissue reached number three on the Billboard Adult Alternative Songs chart.