Alec Baldwin/Christina Aguilera

Live from New York, it's... Kristen Wiig!Sketches include "Rep. Nancy Pelosi," "EZdate.com," "Federline Divorce Proceedings," "Saddam's Lawyers," "Valtrex," "Awkward Carpool," "Kobayashi!" (cartoon), "The Platinum Lounge," "The Tony Bennett Show," "Rick Corman in Brazil," and "A Moment with the Out-of-Breath Jogger from 1992."Christina Aguilera performed "Ain't No Other Man," "Hurt," and "Steppin' Out With My Baby" (with Tony Bennett).