"Wild at Heart" is the sixth episode of the fourth season of Buffy the Vampire Slayer, and is the sixty-second episode altogether. It was written by Marti Noxon and directed by David Grossman. It originally broadcast on November 9, 1999. Oz discovers that Veruca, the singer with whom he feels a strange connection, is also a Werewolf and soon finds his relationship with Willow and his control over his wolf side called into question.