katy-perry-cosmo-australia-460.jpg

Katy Perry is back to black.

The "Last Friday Night" singer is gracing the October 2011 cover of Cosmopolitan Australia in little more than a tiny red spandex top, curve-hugging pencil skirt and her former dark locks (she's since gone blonde/lavender).

The fiery tank leaves little to the imagination, which we're guessing few will argue about.

She does more than show off her enviable figure though. Inside the issue, Katy talks about hubby Russell Brand, her next album and dream duet John Mayer. Surprisingly, the 26-year-old admits in the Cosmo quiz that the most daredevil thing she's ever done was get engaged to Russell.

Whether you read the article or just stare at the cover, one thing's for sure -- Katy is one hot married woman.