The Insane Clown Posse were minor antagonist in Andrew Hussie's webcomic Homestuck. They were a duo of rappers named Violent J and Shaggy 2 Dope. They were part of The Condesce's army alongside Guy Fieri.
Presidents of AmericaThe Insane Clown Posse were famous singers that ran for president of America. Because of The Condesce's manipulation of the public they managed to be voted in. The Insane Clown Posse led America with Bizarre laws and rules, like changing the D.C. in Washington D.C. to stand for Dark Carnival and changing the national anthem to them farting in to a microphone and laughing. They also passed the laws that allowed Guy Fieri to start the Hilarocaust. The Insane Clown Posse were then Challenged to a duel by Dirk Strider's bro on top of the White House. Dirk's bro won the duel and decapitated them both.
When Dave Strider was talking to Gamzee Makara he compared Gamzee's religion to the Insane Clown Posse by sending him a music video created by the Insane Clown Posse called Miracles. Gamzee then realized that his entire religion was based around lies and blasphemy. This, along with Gamzee looking into Lil' Cal's eyes, caused him to go insane. (Mostly it was looking into Lil' Cal's eyes, though.)