User blog:Gravityfallsfan2/gravity falls fan-made episode 9

This is called "Band geeks".

Transcript
(lights are circling outside the Mystery Shack Inside, there is a sign hanging from the ceiling that says 'Komedy Shack)

grunkle stan: Ok, everybody settle down. Welcome to the Komedy shack! (Puts an arrow on his eyes. Everyone laughs) Now please give a warm welcome to our first comic, the indiscernible Dougie Williams. [Dougie walks onto the stage as grunkle stan walks out)

Dougie Williams: Good evening, folks. I'm going to skip the jokes and get right to the part where I throw pies at you. (pulls out a cart of pies. The crowd takes out their umbrellas. Dipper opens the curtain from behind and gets splattered with pie)

Dipper: [Laughs] I hope I do as good as that guy.