David Letterman

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.

You don’t have to wait until later tonight to begin saying goodbye to David Letterman (though if you’re like us, you’ve already started that process) — you can do it right now. The venerable, longtime Late Show host is ending his 33-year run with tonight’s episode, which promises to be a fantastic, hilarious and appropriately heartwarming sendoff. But before we get to that, you can watch Letterman’s final Late Show entrance right now.

Bob Dylan made his final appearance on 'Late Show With David Letterman' on May 19, 2015.

Here's an in-depth look into the often amusing, ultimately emotional history of Warren Zevon on David Letterman's late-night TV shows.

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.

With David Letterman departing The Late Show to make way for Stephen Colbert, the entire world waits with bated breath to see what this living legend will do after his final episode airs this May. Thankfully, we have people like Billy Eichner around to accost strangers and collect suggestions for what he should do next.

He had, of course, previously been a regular musical guest on the 'Late Show.'

Alert, alert: Will Smith still has it. The star of the upcoming con man romantic comedy drama (co-ma rom-com-dram?) Focus hit The Late Show last night to chat it up with host David Letterman and, oh, yeah, to just randomly rap “Gettin Jiggy Wit It” alongside Letterman’s own band. Sure, most late night guests just walk out on stage, give a big hello, and sit down, but not Smith, who seemed determined to remind everyone of his rap roots.

Well...not really. But, David Letterman couldn't help but bust Oscar Isaac's chops.

The late-night landscape remains in upheaval, first by David Letterman's decision to retire from the 'Late Show,' followed by Stephen Colbert's ascension to the throne, and finally heir apparent Craig Ferguson's decision to leave the 'Late Late Show.' Controversy has proven to a minimum, but Letterman still stepped up to speak out on Ferguson's departure, while CBS may not yet court a replacement

Where last year we were watching David Letterman and Jay Leno still battling it out for late-night ratings, the future looks very different now that 'The Colbert Report' star Stephen Colbert has officially been announced as Letterman's replacement, to compete with the already-installed 'Tonight Show' with Jimmy Fallon. While plenty of questions remain, Colbert himself will drop by Letterman's 'Lat

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!