By Meghan Blalock
Updated Mar 29, 2013 @ 10:15 am
Kristen Bell
Credit: Jeff Kravitz/FilmMagic

Kristen Bell and fiancé Dax Shepard welcomed a baby girl in Los Angeles yesterday afternoon. They named her Lincoln Bell Shepard, and in true quirky Bell-Shepard form, the pair took to Twitter to announce their daughter's birth with a bit of comedy. “Lincoln Bell Shepard is here,” Shepard Tweeted. “She has mom’s beauty and dad’s obsession with breasts. Hooray!!!” Bell followed up by saying, “My new roommate poops her pants and doesn’t pay rent…basically Dax pre-sobriety. Welcome baby Lincoln.” Congrats to the funny new parents!

Plus, see more new celebrity parents.