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Like her character Gretchen Wieners, Lacey Chabert is full of secrets.

The 31-year-old Mean Girls and Party of Fiveactress is ringing in the new year with big news -- she's married!

Chabert announced her marriage on Twitter: "I'm starting off 2014 as a Mrs! Over the holidays, my best friends & love of my life...we became husband & wife! #soblessed #love"

In November, Chabert posed for Maxim magazine, calling herself a "nice girl next door." For now, she's staying mum about the identity of her husband.