Did Lady Gaga Forgot To Uncover Her Boobs...?

The Born This Way star showed off her ample cleavage in the black underwear as she went out and about in New York.

She wore the bust-lifting lingerie with a wide open black top, trousers and the usual stacked-up boots.

And with temperatures in the Big Apple struggling to reach 7° , the wacky star risked a cold front.

Gaga teamed the look with a pair of oversized black shades with strange spikes at the top, nude talon nails to match her pale lips and bleached blonde hair.

The 25-year-old singer launched the Born This Way foundation this week, with help from chat show queen Oprah Winfrey.