Evan Rachel Wood has a deep, dark secret. Well, it’s not so deep and dark since she chatted about it openly on Jimmy Fallon's show. She came out as bisexual in Esquire last April, so what could she have been so closeted about? The Emmy nominated actress –for Mildred Pierce—is a full-on Justin Bieber fan, she admitted to Fallon.

There to promote her new film Ides of March, Wood, still sporting some sassy shorn locks, shared with Fallon about how she became a Bieber fanatic. As the story goes, she and a friend went to see the Bieber concert film Never Say Never and walked out ashamed that they actually caught "Bieber Fever."

Wood, who’s known for her dramatic roles in 13, The Wrestler and Mildred Pierce, told Fallon. “You can’t take yourself too seriously,” adding that she listens to Portishead, Radiohead and the “Requiem for a Dream” soundtrack, but the she admitted, “I love Justin Bieber.”

With that admission Fallon asked her to reprise her performance of Bieber’s smash hit “Baby,” a tune she sang at a karaoke bar a few months ago that went viral on YouTube.

Here’s the adorable Wood tossing her Bieber-esque hair and proving she’s got some pretty significant pipes.

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