A motif of two or more letters, typically a person's initials, usually interwoven or otherwise combined in a decorative design, used as a logo or to identify a personal possession.
After Lennon's death the idea of reunion practically vanished.
Still, Paul McCartney, Star and Harrison got together during their work on "Free as a Bird" (which included the vocals of the late Lennon) for "Anthology 1", released in 1995, and for "Real Love" for "Anthology" 2 ”from 1996.