Although we've been covering celebrity uncoverings for years now, we're still not really quite sure why it is that famous women have such a hard time keeping their nipples under wraps. But then again, who are we to ignore the desperate cry of areolas yearning to be free? Over the years, we've spotted more than a handful of accidentally uncovered nipples—or "nip slips," as the kids are calling them these days. After the jump, relive some of our favorite nipplewatch moments. And if they're not doing it for you? Not to worry; we're sure there will be a lot more where these came from before too long. It's sort of a tradition, you know.. . . 
Angelina Jolie 
Eva Mendez 
Claire Danes 
Paris Hilton 
Lindsay Lohan 
Evan Rachel Wood 
Lily Allen 
Shauna Sand 
Bai Ling 
Kym Johnson