Celebrity·Posted on May 21, 201535 Celebrities Share Sweet & Hilarious Goodbye Messages For David Letterman"You made it cool to be smart. You made it cool to be witty."by Kristin HarrisBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. Jennifer Lawrence: View this post on Facebook Facebook: JenniferLawrence 2. Mindy Kaling: View this photo on Instagram 3. Sia: sia @Sia .@Letterman you were like a father growing up. I even had bath time interviews with an imaginary YOU involving shampoo bottles and our... 07:47 PM - 20 May 2015 Reply Retweet Favorite sia @Sia .@Letterman ...SPARKLING personalities. Thank you for the laughs dad. I mean Dave. https://t.co/HDLmNKqwR6 #ThanksDave 07:48 PM - 20 May 2015 Reply Retweet Favorite 4. Oprah Winfrey: Oprah Winfrey @Oprah My last HA HA with Dave tonight. #ThanksDave 07:06 PM - 15 May 2015 Reply Retweet Favorite 5. Bette Midler: Bette Midler @BetteMidler WOW! David Letterman is saying goodbye...33 years of superb invention on his part and laughter on ours. That went so fast! I loved it!! 05:13 PM - 20 May 2015 Reply Retweet Favorite 6. Lena Dunham: View this photo on Instagram 7. Will Arnett: Will Arnett™ @arnettwill You made it cool to be smart You made it cool to be witty This pic's truly a dream come true @Letterman #Letterman 11:30 PM - 20 May 2015 Reply Retweet Favorite 8. Betty White: Betty White @BettyMWhite Tonight is @letterman’s final Late Show. We love each other so much. I will miss him so. But look out -- I'll find him!! #ThanksDave 12:48 AM - 21 May 2015 Reply Retweet Favorite 9. Hillary Clinton: Mary Jo for Hillary @HillaryClinton #ThanksDave—for two decades of laughs, insights, and, yes, even pantsuit jokes. @Letterman, you're a legend. -H 01:51 AM - 21 May 2015 Reply Retweet Favorite 10. Kerry Washington: View this photo on Instagram 11. Melissa Joan Hart: Melissa Joan Hart @MelissaJoanHart It's an end of an era!! I'm heartbroken! And I never got to sit in the hot seat! 💔 #ByeDave #DavidLetterman finale and farewell! 03:46 AM - 21 May 2015 Reply Retweet Favorite 12. Harry Connick Jr.: View this photo on Instagram 13. Kourtney Kardashian: View this photo on Instagram 14. Michael Strahan: View this post on Facebook Facebook: michaelstrahan92 15. Elizabeth Banks: Elizabeth Banks @ElizabethBanks He hasn't said a word and I'm crying. #ThanksDave 06:37 AM - 21 May 2015 Reply Retweet Favorite 16. Jerry Seinfeld: View this photo on Instagram 17. Zooey Deschanel: View this post on Facebook Facebook: ZooeyDeschanel 18. Olivia Wilde: olivia wilde @oliviawilde Ok Dave this feels like the right time to admit I stole some stuff from the set. Just mugs! I take great care of them! So sorry. I love you. 04:57 AM - 21 May 2015 Reply Retweet Favorite 19. Gina Rodriguez: Gina @HereIsGina It was my first major talk show and I will never forget it. #ThanksDave @Letterman 04:00 AM - 21 May 2015 Reply Retweet Favorite 20. Jessica Chastain: View this photo on Instagram 21. Jessica Alba: View this photo on Instagram 22. Steve Martin: Steve Martin @SteveMartinToGo Congratulations to David Letterman, who I now believe is beginning his third career in show business. 10:57 PM - 20 May 2015 Reply Retweet Favorite 23. Sean Hayes: View this post on Facebook Facebook: video.php 24. Connie Britton: Connie Britton @conniebritton Oh Dave. You are the gold standard, the benchmark. It was the pinnacle of achievement to sit in that chair with you. #ThanksDave #Letterman 08:21 AM - 21 May 2015 Reply Retweet Favorite 25. Cindy Crawford: View this photo on Instagram 26. Josh Groban: josh groban @joshgroban Any other east coast 30 something's getting a little emo on the couch right now. It's just dust....dusty in here.... #ThanksDave 04:54 AM - 21 May 2015 Reply Retweet Favorite 27. Olivia Munn: View this photo on Instagram 28. Sarah Michelle Gellar: Sarah Michelle @SarahMGellar This was my very first interview on @Letterman I was so nervous but he was incredible. You will be missed Dave 06:25 AM - 21 May 2015 Reply Retweet Favorite 29. Reese Witherspoon: Reese Witherspoon @RWitherspoon Dave you will be missed! @Letterman xo 07:33 AM - 21 May 2015 Reply Retweet Favorite 30. Jason Alexander: jason alexander @IJasonAlexander David Letterman, thank you for the laughs, both live and on air. May your family bring you joy and inspiration & may you laugh 4 all ur days 05:53 PM - 20 May 2015 Reply Retweet Favorite 31. Demi Moore: Demi Moore @justdemi You'll always be my Secret Santa @Letterman Happy to show you my gymnastics anytime!! http://t.co/u9Kb8KutF3 02:24 AM - 21 May 2015 Reply Retweet Favorite 32. Sarah Silverman: Sarah Silverman @SarahKSilverman Last time I was on #DAVE I wrote him this note 04:59 AM - 21 May 2015 Reply Retweet Favorite 33. Seth Rogen: Seth Rogen @Sethrogen Dave sent me this after I was on once and it's one of my most prized possessions. Was always my favorite show to do. 04:45 AM - 21 May 2015 Reply Retweet Favorite 34. Krysten Ritter: View this post on Facebook Facebook: krystenritter 35. Gwen Stefani: View this photo on Instagram