Rihannaan_KMazu_8124802_600UPDATE: Rihanna's camp has already responded to those alleged nude shots of the singer that hit the internet today.

TMZ reports Island Def Jam Music Group's legal department sent a letter to at least one site that has published the photos.

The letter refers to "unauthorized photos purported to be…Rihanna," and demands the photos be taken down.

The letter also calls the photos a violation of "the Artist's rights."

As TMZ points out, the letter does not deny — and it does not confirm — if the pixs are really of RiRi.

But why would Def Jam Music Group want them taken down if the photos weren't of her?

What do you think?

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Photo credits: WireImage