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Rihanna is ending 2012 on a naked note. Lucky us!

The sexy and nude 24-year-old songstress is GQ's December cover girl.

RiRi, who is wearing nothing but a strategically placed leather jacket, is showing a whole lot of skin and tats ... including the one underneath her breasts that was inked in honor of her late grandmother Dolly, who passed away in June.

Judging by her history of posting very revealing photos on Twitter, this gorgeous gal is definitely comfortable with her body. Talk about a great way to promote her upcoming album Unapologetic.

The new CD, featuring the hit single "Diamonds" and the duet "Nobodies Business" with Chris Brown, drops on November 19.