American Music Awards' Style Stars

From Beyoncé to Carrie to Rihanna, see who rocked the red carpet. By Melissa Liebling-Goldberg

BEYONCÉ

Before performing a country version of "Irreplaceable" with Sugarland, the singer sizzled in a skintight satin Tina Knowles for House of Deréon gown and more than one million dollars of Lorraine Schwartz diamonds on the red carpet.