‘SNL': Watch Kristen Wiig Graduate (Video)

Wiig gets a sendoff from Mick Jagger, the "Saturday Night Live" cast, and Jon Hamm

Last Updated: August 29, 2012 @ 12:07 PM

"Saturday Night Live" threw Kristen Wiig a tearful graduation party, filled with special guests.

No one said it was Wiig's last episode as a full time cast member, but no one needed to. Saturday's show ended with host Mick Jagger, playing the head of a school, announcing that one student was graduating after seven years "to become a nun."

He called up Wiig, and announced a special musical number. Then Arcade Fire, who had performed with Jagger earlier in the show, played the Rolling Stones' "She's a Rainbow" and "Ruby Tuesday."

Wiig, who joined the show — yup — seven years ago, hugged and danced with her castmates, show creator Lorne Michaels, and Jon Hamm, her "Bridesmaids" co-star. The success of the comedy, which earned Wiig an Oscar nomination, made it all but a certainty that she would exit the show to do movies. Past castmates Amy Poehler, Rachel Dratch, and Chris Parnell were also on hand, along with Steve Martin.

Watch the emotional goodbye: