Jessica Lowndes and Friends Celebrate Birthday

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Jessica Lowndes enjoyed a posh masquerade bash on the rooftop of the Thompson Hotel in Beverly Hills for her 20th birthday party this week.

It's hard to recognize them, but costars Adam Gregory, Shenae Grimes, Jessica Stroup, Dustin Milligan and Tristan Wilds all came out to join the celebration.

Jessica Lowndes and Friends

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.

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