Mila Kunis poses for photographs at Cosmopolitan Magazine's Fun Fearless Males of 2011 event held at the Mandarin Oriental hotel in New York City.

Credit: Zimbio

They’re always up for a good time, and last night (April 8) Whitney Port and Olivia Palermo were spotted at the 7th Annual Spring Dinner Dance “New Year’s in April: A Fool’s Fete.”

The former “Hills” babe looked lovely as she arrived, posing for the paparazzi in a long silver dress with a prom-style updo.

Meanwhile, Miss Palermo was joined by her handsome boyfriend Johannes Huebl as she made her way inside to check out all the action.

Hosted by Friends of New Yorkers for Children, the swanky shindig was held at the Mandarin Oriental Hotel.

Credit: Celebrity Gossip