Stephen Colbert is closing out The Late Show with a star-studded final week of guests including Barack Obama, Tom Hanks, David Letterman, and his fellow late-night hosts, ahead of the May 21 CBS finale.

CBS canceled 'The Late Show' despite strong ratings. Here's what led to the decision — and why David Letterman is pushing back.

Former host David Letterman says he doesn't believe the network's insistence that it was purely a financial decision. "They're lying," he told the New York Times. "They're lying weasels."

Stephen Colbert hosted Strike Force Five - Seth Meyers, John Oliver, Jimmy Kimmel and Jimmy Fallon in their final "Late Show" appearance.

Ahead of the final show on May 21, memorabilia from “The Late Show with Stephen Colbert” being sold on eBay to benefit World Central Kitchen. Bidding ends April 29.

Stephen Colbert hosted his fellow late-night frontmen Jimmy Fallon, Jimmy Kimmel, Seth Meyers and John Oliver on Monday's episode of "The Late Show." The meeting of the minds was a send-off for Colbert as he enters his final days as the face of "The Late Show,