You'd think after narrowly escaping having to spill about her relationship with rumoured ex-lover HEATH LEDGER that MARY-KATE OLSEN would be a tad more protective of her private life.

But, apparently not.

The teeny actress has only gone and forgot to set her Facebook profile to private - but not before uploading a photo album showing her partying hard with friends such as NICOLE RICHIE, JOEL MADDEN, SAMANTHA RONSON and sister ASHLEY OLSEN.

MK's pictures appear on a Facebook page for 'Katie Olsen' and the profile is open to anyone in her New York-listed network.

Close pals of the star say the page is definitely hers and not an imposter, and, after taking a peek, AhlanLive.com can confirm it is definitely MK who appears in the photos.

So, note to MK - you might want to click that little privacy button sometime, er soon....

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