The Beatles stars reunited Thursday night for the Abbey Road 50th Anniversary Party in London.
Sir Paul McCartney showed up with his wife, Nancy Shevell, and waved to the huge crowd gathered outside the studios.
McCartney kept it casual in a dark blue denim jacket and pants and gave the crowd a thumbs up.
Starr arrived with his wife, Barbara Bach, and also looked happy to be attending the event and looking back on his succesful career.
In line with the 50th Anniversary Celebration, the Beatles have released a brand new music video for George Harrison's song, "Here comes the Sun."
The video, shot in Abbey Road's Studio Two, features rare Beatles' photos and a new mix of the track.
Studio Two is where The Beatles recorded the majority of the "Abbey Road" album, way back in 1969.
"Abbey Road" is the eleventh studio album to feature recording sessions from all four original members of The Beatles.
50 years ago, on August 8, 1969, The Beatles stopped traffic by stepping out from London's EMI Recording Studios to stride across the black and white crosswalk of Abbey Road.
Photographer Iain Macmillan went down in history for standing on a stepladder and snapping the shots, as John Lennon, Ringo Starr, Paul McCartney and George Harrison walked back and across the road three times.
Only six photos of the walk were taken, and the fifth was chosen to go down in history.
Today, the crosswalk has become a haven for fans looking to recreate the iconic album cover.