Sin City played host to the 2011 Billboard Music Awards and the music world's elite turned out to take home a few awards and rock the stage.
Our favorite performance had to be the Rihanna and Britney Spears duet of S&M -- hello, sexy ladies! As always, though, we're more concerned about the fashion.
We always love what Ri Ri wears -- even if we don't have the guts to wear it outselves. She might have performed in a sexy leather leotard, but she was all business in this all-white pantsuit. Love it!
Nicole Kidman walked the red carpet with her hubby, country rocker Keith Urban. She looked amazing, as always -- love the long braid and sun-kissed strands!
Oh, Ke$ha. Oh no, no, no, no. We love how she dances to the beat of her own drum -- and how she loves teeth -- but this dress is just all sorts of wrong for her body shape. Major case of secondhand embarrassment here.
Well hellllllo, gorgeous! Former Destiny's Child singer Kelly Rowland looked incredible in this skin-tight pink number. Look at those arms!
We love Taylor Swift -- she always picks flawless and age-appropriate outfits. Her 2011 Billboard Music Awards dress was no exception -- love her hair and red lips too!
The reigning princess of hip hop, Nicki Minaj, rocked her trademark pink wig for the red carpet. Also, check out her skin tight (and studded) bodysuit. Amazing body!
Fergie looked flawless in her leather mini. What else is there to say?
Which star's outfit was your fave?
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