By Sarah Caldwell
March 28, 2013 at 08:43 PM EDT

Kristen Bell and fiance Dax Shepard are new parents!

”Lincoln Bell Shepard is here. She has mom’s beauty and dad’s obsession with breasts. Hooray!!!” Shepard tweeted.

Bell also tweeted her excitement.”My new roomate poops her pants and doesn’t pay rent…basically @daxshepard1 pre-sobriety :) welcome baby Lincoln xo.”

Besides motherhood, up soon for Bell is the Veronica Mars movie, which is supposed to start filming this summer.

Read more:

Sundance 2013: Kristen Bell on ‘The Lifeguard’ and working while pregnant