Don't Try It Again

"It's like a first date," said Letterman, admitting he was "on probation." As Hilton, in a yellow dress, made her stage entrance, the Late Show band played "I Love Paris."

"I offended you. I'm not here to make enemies, honestly," Letterman, 60, told Hilton, 26. "I'm terribly sorry."

"Yes," said Hilton. "And you better not try it again. I hope you got the jail thing out of your system."

Their bitter past behind them, Letterman said, "What else would you like to talk about? Let's talk about something fun."

That included her new movie (she plays the "hottie," Letterman explained), her new shoe line, her five fragrances and her cellphone video game – something that seemed to stump her host.

"What is the game?" he asked. "How do you know you've won?"