John Lennon played "I Saw Her Standing There" at Madison Square Garden on Thanksgiving Day, November 28, 1974, when he took the stage at an Elton John concert. It was the last song Lennon would ever perform for a paid audience. Elton released this version as the B-side of "Philadelphia Freedom" the following year. This was the only live duet ever recorded between Elton John and John Lennon, who were good friends.
The Beatles met Mia and Prudence Farrow while visiting the Maharishi Mahesh Yogi in the summer of 1967. Prudence became obsessed with the meditative process and spent almost all of her free time in meditation. The others began to worry about her, and John wrote Dear Prudence as a plea for her to "come out and play" with the rest of the group. She did.
In the Fall of 1969 a rumor swept the world that Paul had died three years earlier in a fiery car crash, and the surviving band members, fearful of the effect his death might have on their careers, secretly replaced him with a double named William Campbell (an orphan who had won a Paul McCartney lookalike contest in Edinburgh).