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Miley Cyrus has posted a holiday-themed topless photo of herself on Twitter.  But this time, the 21-year-old star says there's a deeper meaning behind her near-nudity. 

The photo, which Miley self-censored with two hearts reading "Merry Christmas," came with a caption referencing an indie documentary called "Free The Nipple." 

The documentary takes on the issue of how often naked women are censored in the media, in comparison to other taboos like violence. 

Miley thanked New York for being among the U.S. states where it's legal for a woman to be topless in public, adding later that it's not about getting naked, "it's about equality." 

In Miley's photo, she's shown outside in the snow lifting up her top while suited up in winter gear.  She joked that it actually reveals "less than when [she] wears clothes."