Keeping her dress firmly in place: Emma Watson in New York yesterday after an interview on the David Letterman Show in which she talked about her 'wardrobe malfunction' at the Harry Potter premiere in London on Tuesday. Emma Watson accidentally shows her kitty with these adorable pair of undies. Cute right? This isn't the first time it's happened. "The year-old was grilled about the embarrassing episode by chatshow host David Letterman on the Late Show with Letterman. Watch video · Even slimline Emma wears control pants! Ms Watson flashes some leg (and her underwear) in a daring thigh-split gown at UK premiere of Noah. By Rebecca Davison and Emma Lowe.