This singer has never been shy, but we doubt she meant to give paparazzi an eyeful on the set of her new music video.
The cheeky British party gal showed more than just her side cleavage while taking a smoke break in London.
Of course, it wouldn't be the first time we've seen her topless. She's been snapped sunbathing sans bikini bra before.
Think you know who's suffering from overexposure? Find out if you're right...
It's Lily Allen...although doesn't she look like Katy Perry here?