POLL: Selena Gomez Debuts Grown & Sexy Look at the Much Music Video Awards

Selena Gomez stepped on to the red carpet for the Much Music Video Awards (which she co-hosted) looking remarkably grown-up in a nude Burberry Prorsum dress with industrial looking strap details. Clearly all recovered from her bout with malnutrition and dehydration the previous weekend, Selena was the picture of health.

POLL: Who Was the Best Dressed at the 2011 MTV Movie Awards?

Her dress was super fitted, featuring a low-cut sweetheart neckline, an open back and a very short hemline—in other words, our little Selenita was looking super sexy! We know she's 18, she's got a boyfriend and she's becoming a woman, but whoa: This was a pretty big departure from the much sweeter looks she's rocked at the MTV Movie Awards and her recent Monte Carlo promotional appearances.

Even BF Justin Bieber had to step back to catch an eyeful of Selena's look!

Beauty Transformation: Selena Gomez

We want to know what you think of Selena's MMVA look!