If you caught the 'Saturday Night Live' season finale last weekend, you know it ended with a high school graduation sketch that doubled as a thinly veiled sendoff/full cast dance party in honor of Kristen Wiig, who's leaving the cast after seven years. The fun continued in an epic after party featuring musical guests the Foo Fighters, and thanks to footage uploaded by folks who were lucky enough to be there, now you can see some of what went on.

We know of three clips, all embedded below: Wiig singing a cover of the Joan Jett classic 'I Love Rock and Roll,' Amy Poehler following with the Jett hit (and Foos live favorite) 'Bad Reputation,' and Will Forte fronting the band for a version of Black Sabbath's 'Fairies Wear Boots.'

As Gothamist points out, Wiig was backed by 'SNL' castmates Jason Sudeikis and Andy Samberg on her number, which is significant because they're also reportedly leaving the show (and rumored to be a little jealous of all the attention Wiig received at the end of the finale). Regardless of what might have been going on behind the scenes, everyone looks like they were in good spirits at the end of what was obviously an emotional night -- and whatever happens next, 'Saturday Night Live' will surely look very different next season. Watch a few moments from Wiig's last night as an NBC employee below.

Kristen Wiig Sings 'I Love Rock and Roll' With the Foo Fighters

Amy Poehler Sings 'Bad Reputation' With the Foo Fighters

Will Forte Sings 'Fairies Wear Boots' With the Foo Fighters