Beatles drummer Ringo Starr was a surprise guest at the final gig of former band-mate Paul McCartney's London tour, with the pair reuniting to play some of the Fab Four's greatest hits.
"I've had a great night tonight, it's been a great show," the 84-year-old drummer said late Thursday as he took the stage at London's O2 Arena on the final evening of McCartney's "Got Back" tour.
