プラスティック・オノ・バンド
Two takes of "My Mummy's Dead" were recorded in Bel Air, California, during the summer of 1970 as part of the demo tapes Lennon made in preparation for "Plastic Ono Band". The first take was adapted for use on "Plastic Ono Band". Unlike the other "Plastic Ono Band" songs on the demos, "My Mummy's Dead" was not rerecorded for the album. The second take was not processed and appeared on bootleg albums such as "The Dream Is Over". The second take version was edited with the version released on "Plastic Ono Band" to produce a more complete version of the song, which aired on "The Lost Lennon Tapes". The second take would later be released in 2004 on the "Acoustic" album.