If you were skeptical about Jared Leto's ability to play The Joker, a purely evil agent of chaos, look no further than his dislike for Taylor Swift's music. It takes a heartless, psychopathic supervillain to say "I don't give a f**ck about" Taylor Swift, and that is exactly what Leto does… and not in character.
Sitting with his Thirty Seconds to Mars bandmates, Leto listens to the beginnings of a few Swift songs, casting judgment on all of them. He calls "Welcome to New York" and "Style" derivative, and thinks Swift sings "Starbucks lovers" just like you did at first.
Watch this video and see if you find it scarier than Suicide Squad.