Actor Zach Galifianakis hosts; Vampire Weekend performs "Cousins" and "Giving Up the Gun."

Sketches include "Health Care Reform," "The Vogelchecks," "Bidet," "Zach Drops by the Set," "Today," "Weekend Update" with guests Mo'Nique and Will Forte, "What Up with That?" "The Situation Room," and "Pageant Talk."

Tracy Morgan returns to SNL for his second hosting stint while Demi Lovato makes her second appearance as musical guest. Sketches include Democratic Debate Cold Open, Tracy Morgan Monologue, Brian Fellow's Safari Planet: A Beaver and a Camel, Yo! Where Jackie Chan at Right Now? and Astronaut Jones: The Martian.