Starr joined McCartney during the encore.
Weve got another surprise for you, McCartney told the audience.
Bring to the stage the mighty, the one and only Mr. Ringo Starr.
Paul McCartney performs at the O2 in London.Jim Dyson/Getty Images
Starr played drums for two Beatles classics, Sgt.
Peppers Lonely Hearts Club Band and Helter Skelter.
The drummer capped off the performance by thanking the audience, noting, Give it up.
Im off now, but Ive had a great night.
All that remains to be said, Id see you next time.
And what is more, weve got a special guest for you here.
Wood joined McCartney for another Beatles number, Get Back.
