AU of an Au
Eridan breaks away from Dualscar and starts his own act, channeling his issues into his songs. Fight like a Troll (inspired by Emilie Autumn) speak to the lowbloods, while the record labels hate the underlying political message, which gets Eridan a small but steadily growing following.
Karkat has realized what sort of person Dualscar is and what´s happening to hm, so he goes with Eridan (who is his matespirit by now) and starts working as an actor.
^cod thats jumbled, but whatever.