CBS announced today that Stephen Colbert will be sitting behind the desk on "The Late Show" after David Letterman steps down.  Letterman announced his retirement on April 3rd.

"Simply being a guest on David Letterman's show has been a highlight of my career", said Colbert.  "I never dreamed that I would follow in his footsteps, though everyone in late night follows Dave's lead."

He added, "I"m thrilled and grateful that CBS chose me.  Now, if you'll excuse me, I have to grind a gap in my front teeth."