Simpson, who has listed pop tarts with butter as her pregnancy staple, appeared on Jay Leno last night (watch a portion of her appearance after the jump) to promote the NBC series. After she got herself situated, Simpson regaled the audience with ladylike tales from the set.
The former Newlyweds star explained that she was in the early stages of her pregnancy when Fashion Star kicked off taping, so she would sweat a lot in the studio. “When I came up with it because I was sweating my butt off. I had major ‘swamp ass.’”