miracarsonbaby460Picture%202.jpg Hollywood's got a major case of Bieber baby fever!

Oscar-winning actress Mira Sorvino and husband Christopher Backus welcomed their fourth child, a baby girl named Lucia, on Thursday in LA. The new little one joins big siblings Mattea, 7, Johnny, 5, and Holden, 2.

Congrats on the stork's arrival!

In other news, The Voice host Carson Daly and his partner Siri Pinter are expecting their second child. The expectant mom announced the happy news on her blog, saying, "[I'm] 5 and a half months already! I am beyond thrilled and blessed. I have been eating a lot of cookies." The happy pair are already parents to their three-year-old son Jackson.

Happy times!