1. Kristen Wiig and Jon Hamm
Hamm and Wiig are two celebrities who relish every moment they get to perform live, funny material. Wiig even delivered some impromptu jokes with Will Ferrell during a recent Golden Globes telecast. But we're rooting for Wiig and Hamm should team up because they were such a dynamite duo in outtakes from "Bridesmaids" where both actors got to throw down raunchy, extemporaneous sex jokes during one particular roll in the sack. "Sorry I screamed in your vagina," Hamm tells her during one tender moment.