Rihanna through her modesty to the wind last night as she rocked the red carpet of the 2011 Grammy Awards wearing an amazing white layered, barely-there dress by Jean Paul Gaultier.

Rih-Rih’s dress even stunned Ryan Seacrest so much that he had to stall others on the red carpet.

Rihanna had several wardrobe changes throughout the evening’s event, gracing the Grammy stage not once.. but twice!

She performed ?Love the Way You Lie? with Eminem and later in the broadcast hit the stage to spark a fire with her former jumpoff flame, Drake for ?What?s My Name,? where she gave him a standing “lap dance”…

More photos PLUS video of Rihanna’s performances (“Love the Way You Lie” with Eminem & “What’s My Name” with Drake) below:

VIDEO: Rihanna & Emimen “Love the Way You Lie”

VIDEO: Rihanna & Drake Perform “What’s My Name”

Photos: WireImage

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FULL PHOTO GALLERY