Interesting fact:

The Joker is one of the most iconic creations in popular culture, and the writers killed him off after two appearances. Yup. What the DC staff did not anticipate was how fans reacted to the character – he was adored! Who doesn’t love a psychotic clown, after all? Therefore, in order to satisfy the fans, he was brought back into the storyline and continued to harass dear old Mr. Batman for years to come.