Ellie Goulding learned the hard way: if you wear a white dress, you've gotta wear a slip under it.
The "Lights" singer brought her style A-game to the "Les Miserables" premiere in London on Wednesday night in a flowing gown with sheer sleeves and buttons. But the camera flashes illuminated more than the 25-year-old probably wanted to show, revealing her underwear and her, well, lack of a bra.
Slightly NSFW Photos:
See more star wardrobe goofs!