Grammys: Paul McCartney and Ringo Starr Reunite for Paul's New Song 'Queenie Eye' (Video)

The former Beatles played the new song together as Yoko Ono danced and swayed.

Half of the Beatles were back together again on Sunday at the 56th Grammy Awards. 

Paul McCartney and Ringo Starr reunited at the star-studded show to perform a new song by McCartney called "Queenie Eye."

PHOTOS: Grammys 2014: Red Carpet Arrivals

Sir Paul sat at rainbow-colored piano during the energetic duet, as Ringo took his original role behind the drums. 

The performance sparked a standing ovation from the audience, with John Lennon's widow, with Yoko Ono getting up to dance along.

The appearance by the pair of musical legends from Liverpool is part of the 50th anniversary celebration of the Fab Four going on the Ed Sullivan Show.

On Monday, McCartney and Starr will perform together again at a taping of The Night That Changed America: A Grammys Salute to The Beatles, which will air on Feb. 9 on CBS - the anniversary of the historical show that launched their career in the U.S. 

STORY: Grammys: Beatles, Kris Kristofferson Honored for Life's Work

Both the former Beatles performed separately in the night, with Ringo singing "Photograph" from his 1973 album while black and white images of the British band scrolled across the stage behind him. 

August: Osage County star Julia Roberts introduced Sir Paul, while Starr was welcomed to the stage by Black Sabbath and Ozzy Osbourne

The Beatles were among an influential group of honorees celebrated Saturday at the Wilshire Ebell Theatre with lifetime achievement awards and other honors.

Yoko and Olivia Harrison, the widows of Beatles Lennon and George Harrison, accepted the honors for their late husbands.

On Friday night, Paul was spotted enjoying music of a very different genre at the Beats Music's party.