Every star imaginable took to social media to celebrate David Letterman

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Watch David Letterman Say Goodbye on His Final 'Late Show'


After 22 seasons, 4,262 episodes, and tens of thousands of celebrity guests, it's no surprise David Letterman's departure from The Late Show is hitting a lot of stars pretty hard.

Actors, comics and musicians have been taking to Twitter, Instagram and Facebook all day sharing congratulations as well as memories from their time on Dave's show.

[Stars and scenes from the May 20 finale:]

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Photos from final Letterman show - Wednesday May 20 2015
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Every star imaginable took to social media to celebrate David Letterman
Julia Louis Dreyfus arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Jim Carrey arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Jessica Seinfeld, left, and Jerry Seinfeld arrive for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Hilaria Baldwin and daughter Carmen Baldwin arrive for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Chris Rock arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
From left, Hilaria Baldwin, Carmen Baldwin and Alec Baldwin arrive for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Steve Martin arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Alec Baldwin arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Dave Grohl arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Barbara Walters arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Tina Fey arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Jessica Seinfeld, left, and Jerry Seinfeld arrive for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Paul Shaffer arrives for the last taping of the "Late Show With David Letterman" at the Ed Sullivan Theater on Wednesday, May 20, 2015, in New York. (Photo by Greg Allen/Invision/AP)
NEW YORK, NY - MAY 18: Rita Wilson and Tom Hanks at Late Show with David Letterman in New York City on May 18, 2015. Credit: RW/MediaPunch/IPX
NEW YORK, NY - MAY 18: Eddie Vedder at Late Show with David Letterman in New York City on May 18, 2015. Credit: RW/MediaPunch/IPX
NEW YORK, NY - MAY 06: Norah Jones visits the Late Show With David Letterman on May 6, 2015 in New York City. Credit: Diego Corredor/MediaPunch/IPX
NEW YORK, NY - MAY 06: Radioman and Cher visit the Late Show With David Letterman on May 6, 2015 in New York City. Credit: Diego Corredor/MediaPunch/IPX
NEW YORK, NY - MAY 20: Rupert Jee of Hello Deli arrives at the final show for 'Late Show With David Letterman' on May 20, 2015 in New York City. (Photo by Bobby Bank/GC Images)
NEW YORK, NY - MAY 20: Peyton Manning arrives for the final episode of 'The Late Show with David Letterman' at the Ed Sullivan Theater on May 20, 2015 in New York City. (Photo by Donna Ward/Getty Images)
NEW YORK, NY - MAY 20: Rob Burnett departs 'Late Show with David Letterman' at Ed Sullivan Theater on May 20, 2015 in New York City. (Photo by Taylor Hill/FilmMagic)
NEW YORK - MAY 20: The Foo Fighters perform on the final broadcast of the Late Show with David Letterman, Wednesday May 20, 2015 on the CBS Television Network. After 33 years in late night television, 6,028 broadcasts, nearly 20,000 total guest appearances, 16 Emmy Awards and more than 4,600 career Top Ten Lists, David Letterman says goodbye to late night television audiences. The show was taped Wednesday at the Ed Sullivan Theater in New York. (Photo by Jeffrey R. Staab/CBS via Getty Images)
Police and press wait outside The Ed Sullivan Theater during the last taping of the "Late Show with David Letterman" on Wednesday, May 20, 2015, in New York. (Photo by Charles Sykes/Invision/AP)
Fans wait outside The Ed Sullivan Theater during the last taping of the "Late Show with David Letterman" on Wednesday, May 20, 2015, in New York. (Photo by Charles Sykes/Invision/AP)
Fans wait outside The Ed Sullivan Theater during the last taping of the "Late Show with David Letterman" on Wednesday, May 20, 2015, in New York. (Photo by Charles Sykes/Invision/AP)
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Some even shared stories of how Dave influenced their lives and careers. Parks and Recreation star Adam Scott shared, "A good 80% of why I wanted to do any of this was to one day sit on Letterman's couch."


Some stars didn't want to accept the reality of the situation. Jennifer Lawrence posted a photo begging Dave not to leave.


Even Dave's fellow late-night hosts (even those he's competed with) encouraged their viewers not to miss his last episode.


Many celebs just wanted to make it known that they appreciated all the laughs and good times from Dave's long, groundbreaking career in late-night television.

This truly is the end of an era, and it's going to be interesting to see how his successor, Stephen Colbert, does behind the Late Show desk.

RELATED:
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Jimmy Kimmel's emotional Letterman tribute: I learned how to do everything from Dave
WATCH: George Clooney handcuffs himself to David Letterman
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