Via Uchronia, this is an alternate history piece from Vanity Fair where John Lennon survived getting shot and is still alive, kicking and giving interviews at 70 (which he would have been this year). It’s actually pretty good, if only because the most transgressive, pure-shock-value thing that the author could imagine John Lennon doing would be him getting American citizenship and voting for Ronald Reagan in 1984.
Which, come to think of it, is largely correct: it would have been pretty transgressive of the guy.