Colleen is an unreleased instrumental recorded on 15 January 1982 at Sunset Sound in Hollywood, California during recording sessions for The Time's second album What Time Is It? (the day after International Lover and The Walk, and four days before Wild And Loose).
In a 2019 interview, engineer Peggy McCreary talked about the origin of the track's name, explaining that he had recorded it at the end of a session and McCreary asked what the track should be called on documentation. “He said, ‘What's your middle name?' I said ‘Colleen.' He said, ‘Name it “Colleen.” ' The song never got finished; it never had lyrics.”
The instrumental was discarded, and remains unreleased.