Talking about going out with a bang.

On his final episode of The Colbert Report, Stephen Colbert emptied his rolodex for a massive sing-along with more celebrity guests than the entire Ice-Bucket Challenge meme. Authors, Athletes, Presidents and Muppets all singing together to celebrate late night comedy's best person playing a character of a terrible person.



This video might not be viewable if you're outside the U.S. so here's a YouTube mirror while it lasts.