1967-05: Mick Jagger cantou em música de Beatles?

https://www.cheatsheet.com/entertainment/the-rolling-stones-mick-jagger-may-sung-beatles-song.html/

Citando:

"“Baby, You’re a Rich Man” was recorded during a late-night session on May 11, 1967. The Rolling Stones were at the session, which lasted from 9 p.m. to 3 a.m. One of the tape boxes which came from that session has “+Mick Jagger?” written on it. According to Paul McCartney: Many Years From Now, his might mean he and the other Rolling Stones performed on the song’s final chorus. "

1967-05-17: Início da gravação do "You Know My Name"...

... Uma das mais estranhas músicas dos Beatles (a partir de uma ideia em forma de mantra de John Lennon). Continuada em 7 de Junho de 1967 e numa série de outras sessões de gravação (e com a presença de Brian Jones no sax, do Stones, numa delas) até Março de 1969. Editada apenas em 1970:

https://www.instagram.com/p/CARP2_qA20N/?igshid=11xx0hjbmd2x9