Fifteen years ago this week, on July 18th, 2008, Paul McCartney joined Billy Joel on stage for the final concert at New York's Shea Stadium.
McCartney, then with The Beatles, played the first concert ever held at Shea Stadium, on August 15th, 1965.
Billy had invited McCartney, and when he was on his way to the stadium Paul called him to say he was boarding a flight in London to New York but didn't think he'd make the show.
McCartney's commercial flight was cleared airspace to allow it to land early at John F. Kennedy International Airport. He was then hurried through customs and given a police escort for the 10-mile drive to Shea Stadium, where he joined Billy for The Beatles' "I Saw Her Standing There" and "Let it Be."
McCartney was actually driven to the stage by Pete Flynn, the head groundskeeper, who also did the same thing for The Beatles in 1965. That was all documented in Billy's 2010 documentary, The Last Play at Shea.
[Source: Classic Hits Today]