Ladies' Room
No really... it's a girl!
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It's Mariah Carey
The singing sensation dressed up as a rather passable man for the video to her single 'Obsessed'.
But she's not the only woman to swap genders in the name of showbiz. See if you can guess who the famous ladies are behind the masculine facades.
Best Dressed Women 2011
Top maxi dresses
Star body worries
Top 10 spring dresses
Perfect celebrity husband
Worst celebrity husbands
Iconic brides
Top selling male calendars of 2010
Christmas gifts: The facts
Top 10 Celebalikes
Win a copy of Big Time Rush's new album
Win a copy of Wuthering Heights on DVD
Win a copy of We'll Take Manhattan on DVD
Lana Del Rey: Born to Die