Cosplay attendee in her costume, as Harley Quinn posing for the camera at the New York Comic Con Convention.
Harley Quinn, first appeared in the Batman: The Animated Series episode "Joker's Favor" where she served as a humorous female sidekick to the Joker.
Cosplay, a contraction of the words costume play, is a performance art in which participants called cosplayers wear costumes and fashion accessories to represent a specific character.