Rihanna celebrates in Buckhead

Rihanna visited the Lenox Square Macy's on Saturday to launch her new men's fragrance, "Rogue Man," and afterward dined at Prime, also in the mall.

We're told she and a group of about 16 arrived at the upscale steak/sushi house and enjoyed a feast of  filet with whipped potatoes and caramelized onions, with chopped jalapenos on the side. Ri-Ri paired the meal with Caymus cabernet sauvignon.

A member of the dining party was celebrating a birthday and of course Rihanna joined in a festive performance of "Happy Birthday" for her friend.

The Prime staff was charmed by the gracious entertainer, who planted a peck on her waiter's cheek as they were leaving.

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