In a 2003 visit to Russia, Paul Mccartney met Vladimir Putin and performed a concert in the Red Square. The show marked the first time an ex-Beatle had played in the famous Moscow venue after the band was prohibited from performing there by the former Soviet regime.
Hours before the event, McCartney and his wife Heather took tea in the Kremlin with President Putin. McCartney said he gave President Putin a private performance of The Beatles’ song “Let It Be”. (Source)
McCartney said of Russia, “It was always a mystical land,” he told reporters. “It’s nice to see the reality. I always suspected that people had big hearts. Now I know that’s true.”