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

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"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