S12E03 Insane Clown Poppy
After blowing up Lisa's room - on her birthday - Homer wants to make it up to her and the whole family ends up going to a book fair. Among other authors, Krusty is signing books and one of the kids waiting in line is a girl named Sophie, who tells Krusty she's his daughter! A reluctant Krusty promises to take her to the beach where he realizes he's a lousy father and turns to Homer for some parental advice. The Simpsons help Krusty and he's getting a better dad. However, at a poker game, Krusty has a very good hand but no money and uses Sophie's violin as stake...