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*According to Russo's Collector's Guide, "Who's That Knocking?" was first released as a U.K. B-side (to "Ain't It Funny") on 21 July 1978, and according to McCartney's website, "Let 'Em In" was released as a single on 22 July 1976, although it was also on Wings at the Speed of Sound, released on 25 March.