Paul McCartney Joins Ringo Starr Onstage in New York
Paul McCartney Joins Ringo Starr Onstage in New York

Ringo Starr kept his 70th birthday celebration going on Tuesday night (July 7) with a concert at New York's Radio City Music Hall that was positively star-studded, thanks in part to "a little help from his friend," Paul McCartney.

Video: Paul McCartney and Ringo Starr sing "Birthday"

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The former Beatles bandmates topped off the show by surprising audience members with a performance of "Birthday" from "The Beatles [White Album]," and appropriately so. With McCartney on lead vocals and Starr behind the drum kit, the duo performed with classic rock 'n' roll flair.

"Birthday" was preceded by another all-star collaboration, when Ringo Starr & His All-Starr Band played "With a Little Help From My Friends" and were joined by a few extra notable faces, including Yoko Ono, Joe Walsh, Angus Young and Steven Van Zandt, to name a few.

Video: Ringo Star & guests sing "With a Little Help from My Friends"

Starr spoke with ABC's Diane Sawyer earlier in the day about the magnitude of this birthday for him. "It's a big one," he said. "When you're 20, 30, 40, you can't believe it's ever going to get up here."

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