Zach Galifianakis and Will Ferrell got "Hammed" last night on The Daily Show when the Mad Men actor showed up for an impromptu bit during their interview. Things were getting heated when the Campaign stars called Jon Stewart out on phoning in his interview questions, but Stewart refused to be ganged up on. Rather, he called in his similarly suited friend, Jon Hamm, and turned the tables on Ferrell and Galifianakis. Unfortunately for Stewart, the confrontation didn't exactly go as he planned, but it did make for an entertaining interview.
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