Beyonce opened up the 56th Grammy Awards Sunday night on CBS and endured an embarrasing moment when she mistakenly flashed her breasts.

The 32-year-old Houston singer performed Drunk in Love with husband Jay Z and hit the stage in a black see-through long sleeve unitard. She did most of her performance on a chair, but when she stood up, her breasts were visible. While she continued to sing, fans caught wind of the malfunction and started tweeting away.

"It doesn't matter if beyonce's nipple popped out, so ! It's her nipple and it'll pop out if it wants to, sheeeesh."

"But WHY IS BEYONCE NIPPLE BLACK?"

While Beyonce's nipple appeared to be out, reports also swirled that she lipsynced during the first portion of her performance. Her earpiece came out midway through Drunk in Love and she was forced to continue without help. Again, fans took to Twitter to write:

"Why is everyone makin fun of lorde when no one pointed out beyonce lip sync lol."

"Wish Beyonce would learn how to not lip-sync. Thought she would of learned after the inauguration."

Meanwhile, though Beyonce was not nominated alone for any awards for the show, she and Jay Z were nominated for Best Rap/Sung Collaboration for the song Part II (On the Run) off the rapper's twelfth studio album released last July.  Jay Z leads the pact with 9 nominations.


[HD] Beyonce - Drunk In Love (Ft Jay Z) Grammys... by IdolxMuzic

Tags: Beyonce