Ke$ha, the self proclaimed "dirty little sister" of pop, looked anything but grungy during the BMI Pop Music Awards on Tuesday night.

The pop star ditched her ripped stockings, studded hair and uhm, crude behavior, and channeled the 1920's in a very flapper-esque outfit. Ke$ha looked glamorous in a silver and gold drape dress, Jerome C. Rousseau black peep-toe heels and a thin gold headband placed atop her wavy blonde hair.

And it gets better: the singer's makeup was even appropriate, a far cry from her bright blue lipstick days, as she rocked shimmery eyes and wine-stained lips.

We're impressed! Is the "Tik Tok" singer finally trading in tattered flag shirts and her bottle of Jack Daniels?

Ke$ha did spring one beauty surprise on us, though: she used eyeliner as lip liner, which she gleefully tweeted about.

Did Ke$ha pull off this look? Check out the pics and cast your vote.

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Click through our slideshow to see Ke$ha's style evolution!
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  • December 2009

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  • January 2010

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  • November 2010

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  • April 2011

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  • November 2011

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  • March 2012

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