Rihanna made her rounds in NYC last night, wrapping up her 777 World Tour at Webster Hall, and continuing the celebration into the wee hours of the morning at her album release party at the 40/40 club. As usual, the always-fashionable RiRi managed to do it all in style. Meanwhile, there was a very different kind of party going on at Dylan's Candy Bar, where Promgirl.com celebrated their 10th anniversary. Nevertheless, guests at the teen-targeted event did not disappoint us fashion-wise. Click through to see our favorite looks from both ends of the party spectrum.
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