Beatle legend makes surprise appearance during band's set at Russian billionaire's St. Barts party
"Having worked with him on a number of occasions, his great talent always shone through," Beatles great says of late pop singer
'Sing' cast – including Matthew McConaughey, Scarlett Johansson, Reese Witherspoon – join for a cappella rendition of McCartney hit on 'Tonight Show'
'Flowers In the Dirt' reissue includes multiple discs, unreleased original material
Bandmates discuss pivotal moment when they insisted on writing, recording original songs in 'Eight Days a Week' extra
"When you've reached a real Beatle, it's the ultimate co-sign," says Swae Lee. "Before we blew up ... he gave us some uplifting words of wisdom"
"We finally found someone under the age of 50," Beatle jokes after performance of 2015 single
Despite "Coachella for old people" baggage, historic event affirmed enduring power of six legendary artists
Rolling Stones, Paul McCartney, the Who, thousands of fans gather in California
Rock legends perform together onstage on second night of historic fest
Rock legends perform "A Day in the Life" and, for first time live, "Why Don't We Do It in the Road?" at California fest
Twenty-five of the most memorable times John, Paul, George and Ringo graced the magazine's pages
Hear recording of group's fateful Candlestick Park show, which concluded doomed 1966 U.S. tour
Psychedelic drug inspired their masterpiece – but also opened wounds that never healed
Tune in to the latest episode of our weekly podcast