Jennifer Lawrence Is Terrified of Singing in Public

Jennifer Lawrence plays superheroes onscreen, but her real-life kryptonite is pretty standard, as far as secret weaknesses go. Lawrence visited The Late Show Wednesday night and confessed to David Letterman that while she sings in the newest Hunger Games installment, Mockingjay, Part 1, she's not comfortable with singing in public. In fact, she's mortified by the idea.