‘Mean Girls’ starlet Lacey Chabert danced the night away on her 27th birthday in Sin City on Friday night, and ET has the 411!

Lacey, glowing in an emerald and gold strapless dress, brought an intimate group of friends and her mom to celebrate the big day at Tabú Ultra Lounge. The whole venue wished her happy birthday as she blew out the candles on a two-tiered chocolate mousse cake presented to her by the staff.

Lacey and friends then partied until the early hours of the morning.

From ET Online