Hot mama Nicole Richie is set to hit the small screen in NBC spy show "Chuck," and, in our new video, she's talking about what it was like to film her scenes. Watch our video to go behind the scenes with the cast, who explain what it was like to have paparazzi fave Nicole on the set, and for clips from her episode, which will air next Monday, October 20.

Nicole stars as a "mean girl" in the episode -- her character went to high school with super spy Sarah (Yvonne Strahovski) and Sarah is given the job of spying on Nicole at their high school reunion. Things go awry and the two gorgeous gals wind up having a showdown in the shower!

Watch our video for more!