Back in 1964, Paul McCartney played The Ed Sullivan Show with The Beatles. And on Thursday night, he returned to the same venue to turn out the lights on The Late Show with Stephen Colbert.

“The Late Show with Stephen Colbert ” came to a climactic and possibly interdimensional end on Thursday night as the show’s final guest led a rousing sing-along to an almost too-fitting song.

The late-night host's second-to-last show on Wednesday, May 20, featured surprise cameos by more than 10 major stars, all taking the stage one after another.