Janet Jackson has posed topless for the cover of Vibe magazine!
The singer, 40, shows off her skinny new body in a skimpy bikini bottom and just a necklace on the magazine's cover. Her right arm covers her breasts. Jackson says she'll stop posing for sexy photos, Jackson said, "Of course. When I'm 80. That's when I'll call it quits."
(Click them to see the large pictures):

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