The gown featured heavy fringe and beading, but the plunging back had heads turning.
Too bad she didn't wear a necklace! The look appears a little incomplete without some jewels, no??
But luckily she had a beautiful Judith Leiber clutch to keep her goodies in for the rest of the evening.
We're sure she and Muse hubby Matt Bellamy had a blast!!
What are U thinking??
[Image via AP Images.]