The surviving Beatles, Paul McCartney and Ringo Starr, performed together on Sunday to raise money to help kids learn a meditation technique the 1960s icons practiced at the height of their fame.
McCartney was joined onstage in New York by Starr for a rousing rendition of [With a Little Help From My Friends] at the Change Begins Within concert for the David Lynch Foundation, which promotes Transcendental Meditation.
The Beatles helped popularise Transcendental Meditation - described as a simple mental technique to combat stress - in 1967 when they sought spiritual guidance from an Indian guru, Maharishi Mahesh Yogi.
"It started for us when we met the Maharishi in India and it's going to get bigger and bigger and rule the world," McCartney said.
McCartney's set topped an evening that included performances by Starr, Sheryl Crow, Pearl Jam's Eddie Vedder and Ben Harper.
McCartney's choice of songs included Beatles classics such as [Let it Be], [Lady Madonna] and [Blackbird] and the concert was rife with nostalgia for the two dead Beatles, John Lennon and George Harrison.
McCartney and Starr last played together in November 2002 at the Concert for George in London's Royal Albert Hall after Harrison's death from cancer at the age of 58.
Earlier, after playing his hit [It Don't Come Easy], Starr said, "I wrote that song with George Harrison and you know he would have been here tonight."
Starr also played Beatles favorite [Yellow Submarine].