The Joker is back!

Joaquin Phoenix, puts on a happy face as he goes completely insane in the new Warner Bros/DC Film flick.

In true Joker form his character goes completely insane in the new take on Batman’s archenemy.

Warner Bros. released the first teaser trailer Wednesday for “JOKER,” which follows Arthur Fleck as he gets chewed up and spit out by the rough city of Gotham.

In the newest adaptation, Phoenix actually begins his story as a struggling clown who slowly slips from society and emerges as the iconic comic book villain, and the latest reveal does not disappoint.  “JOKER” hits theaters October 4.

Watch the trailer below!