Bruno Mars kills it at the Met Ball gala!/RyanSeacrest/status/199696508931682305

It was a night of the stars at the annual Costume Institute Gala Met Ball in NYC tonight — also known as the fashion world’s Oscars. But fashionistas took a backseat to pop icon Bruno Mars, who brought down the house with a surprise performance that included covers of “Roxanne” by The Police and “Dirty Diana” by Michael Jackson. Among the smitten starlets? Rachel Zoe, Sofia Vergara, Kate Bosworth, Karen Elson, and Mars’s not-so-secret crush, Rosario Dawson.

Bruno Mars is rocking the Temple of Dendur at the Costume Institute Benefit. #MetGala

— Women's Wear Daily (@womensweardaily) May 8, 2012

Bruno Mars is killing his rendition of "Roxanne" at the Met Ball…!

— Rosario Dawson (@rosariodawson) May 8, 2012

Bruno Mars at the Met Ball. This is THE partyyyy

— Sofia Vergara (@SofiaVergara) May 8, 2012

Umm @BrunoMars at the #MetGala…way fun!!! xoRZ

— Rachel Zoe (@RachelZoe) May 8, 2012

Bruno Mars

— joe jonas (@joejonas) May 8, 2012

Bruno Mars rules

— Karen Elson (@KarenElson_) May 8, 2012

That @BrunoMars is really something #MetGala

— Marc Jacobs Intl (@MarcJacobsIntl) May 8, 2012

ROXANNE @brunomars #metgala

— Kate Bosworth (@katebosworth) May 8, 2012

Bruno’s brother, who plays drums for the band, tweeted, too:

"@thisisCARA: Bruno Mars performing live at The MET tonight…surprise! :)"//So much fun!!

— E-Panda (@mrEricHernandez) May 8, 2012

Diehard fans — “Hooligans” — enjoyed the Twitter love for Bruno. And his hair:

I love how everyone is tweeting amazing things about @BrunoMars' performance at the Met Gala today 🙂 #VeryProudHooligan

— © (@ChrystalMars) May 8, 2012!/SunShineSparkL/status/199716368441016322

Impossible conversations! @brunomars singing Roxanne! #Metgala  on Twitpic

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