Believe it or not, but Bradley Cooper attended a state dinner at the White House without wearing underwear. He told Ellen DeGeneres:
"I had to go commando - number one cause there was no room at all (in the tuxedo). I did. I had to... So it was really great. And you have to walk up the stairs and it was a nightmare. But I made it through."
And just like that, he has something in common with Paris Hilton.