David Letterman
He did promise he'd win at everything.
All's fair in love and late-night war.
In space, no one can hear you scream-laugh.
WHAT'S HAPPENING
"Dave's Mom" occasionally appeared on "Late Night" as a special guest.
Letterman was inducting Pearl Jam into the Rock and Roll Hall of Fame.
Many happy returns.
It did bring people together -- just not in the way Pepsi had intended.
"This is what’s wrong with Washington, D.C."