David Letterman

He knows Stern as a "completely different guy" today.

These interviewers were so out of pocket.

Among other questionable topics, he even asked her what she ate for every meal while in jail.

We don’t often think of fictional Presidents in terms of alternate realities, even as they mix real-life political history with their own. Veep in particular has a somewhat hazy backdrop, though producers apparently tried to get David Letterman to cameo in an alternate-reality Tonight Show twist.

There were no scheduled guests on the final episode of The Late Show With David Letterman (minus The Foo Fighters, who closed out the night with a performance of “Everlong”), but that didn’t mean that a few of Letterman’s old friends didn’t stop by to say goodbye one last time. Some of the funniest people alive all came together to present one final Top Ten list, Things I've Always Wanted to Say To Dave.

T-minus one week and counting until the very last Late Show with David Letterman and the tributes are coming faster and faster, and sadder and sadder. I hope on the last installment of Stupid Pet Tricks one of the tricks is a shih tzu shedding a single tear for the end of this venerable late-night franchise, which comes to a close on May 20. It’s only fitting.

‘The Colbert Report’ has already said its goodbyes, while David Letterman will hang onto the ‘Late Show’ until May, so when does Stephen Colbert finally take the desk, and begin our new era of ‘Late Show with Stephen Colbert?’ Find out, as CBS has released the official start date, and teased some specials from Letterman himself!

Stephen Colbert has already begun making the final rounds of ‘The Colbert Report’ in preparation for his new CBS ‘Late Show’ hosting gig, but don’t expect David Letterman to vacate the chair just yet. The longest-running late-night host has officially set a departure date for May 2015, bringing an end to ‘The Late Show with David Letterman’ as we know it.

Ben Stiller has accomplished a lot in his life -- this is the guy who created 'Zoolander,' after all -- but his dearest memory might just be a very unexpected one: that time he survived a hot air balloon ride. Said ride wasn't conceived of as a daredevil experiment, it was actually a fun part of a Stiller family vacation in Italy. It was supposed to be a good experience!

Often, particularly colorful characters take to the various late shows to flex the full range of their unique spirit, just for funsies. Joaquin Phoenix looked to be going down that precise path on last night's 'Late Show,' actively imitating himself learning yoga, calling his more personal bits "Julio Igelasias," and just generally having a good time. Host David Letterman looked nervous, but Phoenix looked relaxed, and that might be why Phoenix's good-time appearance took a serious turn when the 'Inherent Vice' star announced his engagement on air.

Emma Stone is a big believer in the supernatural -- and her late grandfather even communicates with her family, the actress revealed during a recent appearance on 'The Late Show With David Letterman'.

Well, that was fast! Just one week after David Letterman dropped the 'Late Show' bombshell that he would retire in 2015, his replacement has officially been announced. Following early and decisive rumors, Stephen Colbert will officially leave behind Comedy Central's 'Colbert Report' to ascend the late-night throne as the new host of CBS' 'The Late Show.' You're welcome, nation!