In an announcement that surprised...well, pretty much everybody, David Letterman has revealed that he'll be retiring from late-night television in 2015 - and there was no shortage of reactions from celebs and just regular ol' people on Twitter following the news. Below you can find a roundup of some of the best reactions.

 

 

 

 

 

 

 

 

 

 

One name to add to the #Letterman replacement list… @HowardStern's contract with #SiriusXM expires in 2015. He's a big Dave supporter

— Baker Machado (@BakerMachado) April 3, 2014