Lacey Chabert and her sister Crissy Lacey Chabert and her sister Crissy

Lacey Chabert may have played a blabbermouth on Mean Girls, but in real life, she knows how to keep a secret!

The Party of Five alum, 31, revealed on Friday that she got married over the holidays. "I'm starting off 2014 as a Mrs! Over the holidays, my best friend & love of my life...we became husband & wife," she tweeted.

See which other celebrities tied the knot over the holidays

Chabert also shared a picture from the nuptials of her and her maid of honor, her sister Chrissy, on Instagram. Chabert, however, has not revealed the name of her new husband or any other details about their wedding.

Chabert most recently recurred on Baby Daddy, and also posed for the November cover of Maxim.