Jimmy Fallon returned to his old stomping grounds at the studio where "Saturday Night Live" is filmed on December 17. The comedian, who was a cast member on the show from 1998 to 2004, returned to studio 8H for his first time as a host.
Fallon also brought back classic characters and "Saturday Night Live" veteran performers like Tina Fey, Amy Poehler, Chris Kattan and Tracy Morgan.
The show's cold open sketch featured Fallon as his character Pat "Sully" Sullivan for his "Boston Teens" skit. Rachel Dratch returned to the stage as his girlfriend Denise "Zazu" and the two tried their best to sneak into their old high school to reenact the events of their second date.
Another breakout sketch came from "Weekend Update" where Fallon interrupted current anchor Seth Meyers for a joke-off. Amy Poehler came in to back up Meyers, her old co-anchor, and Fey came in to back up Fallon. Some of the funniest moments from the skit came from the strange bleep noises the comedians made to buzz themselves in.
Fallon also gave the viewing audience a bit of a holiday treat when he, Horatio Sanz, Chris Kattan and Tracy Morgan, took the stage decked out in Christmas sweaters once again to revive their classic "Saturday Night Live" song "I Wish It Was Christmas Today."
Michael Buble kept the holiday spirit going with performances of "Have A Holly Jolly Christmas" and "Have Yourself a Merry Little Christmas."
Check out the "Boston Teens" skit and the "Weekend Update" skit below and tell us what you thought of Fallon as "Saturday Night Live" host.