It was after last year's event that she had the infamous argument with then-boyfriend Chris Brown, which ended with her beaten black and blue - and him facing five years of probation and a year of counselling.
But at this year's event, Rihanna attended alone and stole the night in a show-stopping ruffled dress and quiffed hair-do.
But at this year's event, Rihanna attended alone and stole the night in a show-stopping ruffled dress and quiffed hair-do.
Katy Perry dazzles in a Georges Chakra Fall 2009 Couture dress
Taylor Swift looks very slender in a dazzling silver dress
Fergie of the Black Eyed Peas wore a bandage and lace dress.
Carrie Underwood also opted for silver with a beaded Jenny Packham Spring 2010 dress.
Katy Perry shows off her engagement ring to country sensation Taylor Swift. Rock n' Roll collaboration: Slash and Fergie belt out Sweet Child O' Mine