Ho ho ho!

We kid, we kid. We love us some Miley Cyrus, especially when she's campaigning for a good cause!

Miley tweeted the racy and holiday-themed photo above and she wrote, "Merry Christmas THANK YOU NY for being one of the few states to @freethenipple." So what exactly is Free the Nipple? In case you didn't know, it's an independent documentary that challenges censorship laws in America, arguing that the media shows more violence than breasts. Hey, she's got a point!

On Friday Miley posed with bestie Cheyne (he was dressed up as a boozy bad Santa Claus) backstage at Z100's Jingle Ball at Madison Square Garden in NYC ... looks like she's really getting into the Christmas spirit!

miley-santa-cheyne.jpgGetty Images for Clear Channel