Stars Take It All Off!

Kellie Pickler, Kim Kardashian, Sofia Vergara and more stars are stripping down in their Twitter pics!

  • HOLLY MADISON photo | Holly Madison

Credit: Courtesy Holly Madison

Updated: Sunday Jun 05, 2011 | 06:00 AM EDT By: Cara Lynn Shultz

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HOLLY MADISON

"Octogon [sic] girl alert!" Tweeted the former Girls Next Door star, who worked in the Ultimate Fighting Championship's famed "octagon" ring in Las Vegas.