Deborah Ann Woll, the actress who plays Jessica on HBO's True Blood, is a woman of many talents. Not only can she play an angsty vampire forever trapped in a 17-year-old's body, but, it turns out, she's also a big fan of musical theater and a heck of a singer herself. Watch as she, put on the spot by Peter Travers, knocks out a more than capable version of George Gershwin's "They All Laughed." Now that's something you can really sink your teeth into! (Sorrrrrrrry.)