B&R: Batman: The Brave and The Bold - Emperor Joker - Where's the fun in that?
As seen before the Batman Brave and the Bold has amazing musical sequences involving Batman and the DC universe. This one let's you rock out with the Joker. The song is quite catchy and get's stuck in your head. "Smile darn ya smile" is almost as iconic as "why so serious" as far as Joker quotes go.