The Fingernails were a song-and-skit performing group Sarah formed when she was a student at Rosemary Hall, then an all-girls' boarding school in Greenwich, Connecticut. She wrote original songs and skits for the group, which numbered five girlfriends, among them the future actress Glenn Close. When Sarah came to direct her script of ALL I WANNA DO some 34 years later, she reconvened the Fingernails to record the end-credits song, which she wrote to be the kind of Top-40 parody the group used to do. "The Hairy Bird" spoofs the Shangri-Las' "Leader of the Pack" and "Give Him A Great Big Kiss." Sarah sings lead, though the first voice one hears on the track is Ms. Close's.