The red paint on the clown's face

It isn't paint at all. It is the red blood of the wicked piggy known as "Thirteen." The clown goes in town wearing the blood proudly and performing for the world while wearing it. They applaud at the end not knowing they are applauding murder. But the clown knows and smiles for the crowd. It has never done a better performance in its life and the applause has never been so loud before. If it would have known it would be this great, it would've committed the murder years ago.