"Baby Did a Bad Bad Thing" is a song by American rock and roll artist 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.