Paul McCartney and Ringo Starr Visit David Letterman to Mark 50th Anniversary of Ed Sullivan Performance — WATCH VIDEO!

(CBS)

The Beatles changed pop culture forever when they played “The Ed Sullivan Show” 50 years ago this week, and to mark the milestone, Paul McCartney and Ringo Starr visited David Letterman at the same theater as part of a special to be aired on Sunday.

In preview clips, the music icons talk about the legendary performance, and McCartney tells an amusing backstage anecdote.

Watch the videos below!

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Daniel Jacobson