A fan theory suggests Joaquin Phoenix’s Joker dance scene may secretly be a nod to Heath Ledger’s serenade in 10 Things I Hate About You. Joker’s Most Famous Scene Actually Pays Homage To Heath Ledger ...

Most notably, Heath Ledger's iconic Joker in The Dark Knight didn't reveal the cause of his facial scars, but this mystery may now have been answered thanks to one detail from Joker: Folie à Deux ...

There are a lot of great interpretations of the Joker, but Heath Ledger's performance in 2012's "The Dark Knight" is truly the most iconic. His Joker is everything you want the character to be.