10 Best Celeb Quotes This Week

Justin Timberlake can't hold in his excitement, Katherine Heigl gets lit with Dave Letterman, plus more from Martha Stewart and other stars

"Here, try it."
Katherine Heigl, passing her electronic cigarette – a device to help break the habit – to David Letterman

"I'm not going to take a big one."
Letterman, accepting his first hit of vaporized nicotine, on his late show