Has Katy Perry ever posed nude?

I don't think so, BUT I seen her in a SEXY dress ALMOST প্রদর্শিত হচ্ছে her private parts...

There are magazine ছবি shoots where she has been half nude, but her arm would be covering the unclothed parts.

Well derr, on the cover of her ফ্যানপপ page, there's a pic.