Justin Timberlake can't hold in his excitement, Katherine Heigl gets lit with Dave Letterman, plus more from Martha Stewart and other stars
Updated: Friday Oct 01, 2010 | 06:00 AM EDT
By: Christie LaRusso
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"They did invite me once…For some reason they didn't let me go on – it was during probation."– Martha Stewart, on why she never appeared on Saturday Night Live, while cooking with show cast member Seth Meyers on her daytime show
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