Screenshot of a post from @Spen... (Spencer Althouse) on X, posted 4 hours ago, describing the final episode of The Late Show with Stephen Colbert, where Colbert sang "Hello, Goodbye" with Paul McCartney, joined by his family and crew, before McCartney turned off the lights to the Ed Sullivan Theater. Below is a video still of McCartney performing on stage with a guitar under blue stage lighting, with other musicians visible behind him.