Rihanna Makes Surprise Appearance At Friend's NYC Birthday Party

Rihanna made a surprise appearance the iconic singer showed up at a friend's private birthday party, Riri looked as stunning as ever in her form-fitting silver dress, popping into Pergola restaurant in Manhattan early Monday morning as the soiree was already in full swing. Riri had a couple of bodyguards watching her as she enjoyed a fun-filled time with her 20 or so friends RiRi was really cutting loose, dancing, laughing, chatting, and taking photos with her posse. 

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