Rihanna heated up the red carpet when she arrived at the Grammy Awards today in LA wearing a custom red Azzedine Alaïa dress. She is up for several awards tonight, including best pop solo performance for "Where Have You Been" and best rap or sung collaboration for her song with Jay-Z, "Talk That Talk." Rihanna will also take the stage during the show for a special performance with Bruno Mars and Sting. Be sure to vote for your favorite Grammys looks in our red-carpet fashion and beauty polls.
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