Check out which stars sizzled and fizzled on the red carpet!
It got even hotter than usual in Las Vegas on Sunday night, thanks to the star-studded red carpet at the Billboard Music Awards.
Stars like Miley Cyrus, Carrie Underwood, Modern Family stars Julie Bowen and Ty Burrell, Katy Perry, Justin Bieber, Kelly Clarkson and many more arrived in style ... and Katy Perry even brought a "hot date."
Check out all the photos from the arrivals line and let us know who you think looked hot ... and who didn't!
See all the red carpet photos NOW on TooFab: The Sexiest Looks From The 2012 Billboard Music Awards
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Photo Credit: Getty