VIDEO: Betty White Kills On 'SNL'

Betty White became the oldest host ever on Saturday Night Live yesterday in a stunning comedic performance that marked one of the show's funniest episodes in years. White was invited to host after a successful campaign launched by Facebook fans. "I really have to thank Facebook," White quipped. "I didn't know what Facebook was, and now that I do know what it is, it sounds like a huge waste of time. I would never think that people on it are losers, but that's only because I'm polite,"

Other episode highlights had White joking about her, em, "dusty muffin" and playing a prison reformer. A number of SNL alumna including Tina Fey, Maya Rudolph and Rachel Dratch returned for the special Mother's Day-themed episode.

Watch it here: