News David Letterman Has Grown a Giant Beard and Is Now Barely Recognizable By Alex Ungerman 10:25 AM PDT, September 28, 2015 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 31:38David Letterman Looks Totally Unrecognizable In New Photos02:35Adam Sandler on Recovering from Hip Surgery and His Hopes to Joi…03:32Ashton Kutcher Opens Up About His Life-Threatening Health Condit…02:05Lena Dunham Shuts Down Melissa Joan Hart 'Feud' Rumors (Exclusiv…01:27Michelle Williams on Her 'Busy' But ‘Happy’ Household After Welc…01:42Alyssa Milano Offers Update on 'Who's the Boss?' Reboot With Ton…03:19Chris Hemsworth Says MCU Co-Star Chris Evans' Sexiest Man Alive …02:20Sylvester Stallone Gives Update on Family Life With Jennifer Fla…24:24Prince Harry and Meghan’s Night Out in New York City | ET’s The …02:47Aubrey Plaza on Going Blonde and Her Favorite 'White Lotus' Meme…03:05Aaron Carter's Ex-Fiancée Melanie Martin Shares Rare Pics of Lat…02:01Jim Parsons Reacts to ‘Big Bang Theory’ Co-Star Kaley Cuoco Beco…02:182022 Gotham Awards Highlights! Michelle Williams, Adam Sandler a…01:32Sylvester Stallone Calls His ‘Tulsa King’ Mafia Character a ‘Gan…03:42Gayle King Weighs In on ‘Messy’ Romance Scandal Between ‘GMA’ Co…02:09Prince William and Kate Middleton Not Reuniting With Prince Harr…01:35'Something From Tiffany’s' Official Trailer02:02Kelly Rowland Makes a Surprise Announcement for Her Fans on 'The…01:34Ashton Kutcher’s Twin Brother Admits Jealousy of Actor’s Success… Letterbeard may not have as much ring to it as Colbeard, but it grew just the same in much the same way. David Letterman was spotted out in NYC on Sunday, sporting an impressively gruff white beard. WATCH: David Letterman Gives Hilarious, Star-Studded Farewell to Late ShowSplash News Honestly, all we want to do is touch it.WATCH: Stephen Colbert Shaves His 'Colbeard' in First 'Late Show' PromoThe former Late Show host has clearly become the new heir to the hair after his successor Stephen Colbert's own Santa Claus-like facial features following the end of The Colbert Report.We'll keep you updated on the growing problem among former late night talk show hosts as it manifests itself, but in the meantime, watch ET's best moments with Letterman over the years below. WATCH: ET's Top 10 Moments With David LettermanET's Top 10 Moments With David Letterman This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page.