Hillary Clinton would be proud. The proverbial glass ceiling the former First Lady sought to break is about to receive another crack, courtesy of Jessica Simpson.

In fact, the whole thing may be shattered altogether as a result of her screeeching. We're talking nails-on-a-chalkboard meets noises-only-dogs-can-hear.

The alleged country singer plans to perform songs from her new record Do You Know (it hit #1 on the country chart, which says as much about the genre as it does Jessica Simpson) at the Nina's Night Out concert in Las Vegas Thursday night.

The benefit concert, which will be held to raise money for the Rape Crisis Center in Las Vegas, is taking place at The Palms' Pearl Theater.

Even Jessica Simpson winces at the sound of Jessica Simpson.

"This performance will be more serious than most... It's important to make a stand for women's rights. If I can get up there and be any inspiration to women, I am blessed to have that opportunity," Simpson told the Las Vegas Review-Journal.

This sounds like a great cause and everything, but we can't help but chuckle - could women's rights find a poorer example? She got famous for being dumb and has remained famous for having gigantic boobs and wearing a pink Cowboys jersey.