BEYONCE FLASHES BOOB IN DENIM ENSEMBLE.

Queen Bey is usually conservative when it comes to fashion, but hey, she's hanging out with Kim Kardashian these days, so.... I guess a little cleavage wouldn't hurt.
She was spotted Tuesday ,with boobs bursting out of her unbuttoned, bra-less blouse, and a denim skirt underneath.
see the look below..

She had a huge wardrobe malfunction last week at the Tom Ford fashion show, backstage, but she seemed to have escaped that here.. 

Who needs buttons when you're Beyonce!