Piper Perabo isn't nominated this year, but she made sure to capture some major attention in this see-thru ensemble anyway!

The Coyote Ugly star wowed the crowd when she stepped out in a sheer gray-lavender gown from the Theyskens' Theory Spring 2012 collection that appeared to be transparent, paired with Tiffany & Co. diamonds and Christian Louboutin disco-ball heels.

What do you think of Piper's peek-a-boo look?