Fashion designer Rachel Zoe welcomes her second child into the world with husband Rodger Berman.

The 42 year-old announced the news via her twitter account on Sunday (Dec 22nd).

"So excited to welcome our baby boy into the world...he's 7 lbs 12 oz, beautiful, healthy and we couldn't be happier," the celebrity stylist tweeted.

The 'Rachel Zoe Project' star officially has a family of four as she gave birth to her first son Skyler in March 2011.

However the 2 year-old isn't as thrilled as his parents about welcoming a new member to their brood. Zoe told E!News, "he understands a little [about the pregnancy] and I don't think he is that happy about it," she quipped.

"He does not want to share his mommy. He doesn't even want to share his mommy with his daddy, you know? He's a little possessive."

She confirmed the pregnancy news back in September via her website by posting, "Rodger, Skyler and I hope that everyone had an amazing summer! Before we head into the chaos of fashion season, we wanted to take a moment to OFFICIALLY confirm that we are expecting another child."

Adding, ''We are beyond excited for Skyler to have a sibling and for us to fall in love all over again. We feel incredibly blessed. Thank you all for your constant love and support of our family.''

Hopefully Skyla will eventually become as excited as his parent about the new addition.

Zoe and Berman, who is President of f Rachel Zoe, Inc., first met in 1991 when they were both attending college in Washington DC and eventually tied the knot in 1996.

Congratulations to the happy couple!

Rachel Zoe
Rachel and family have welcomed a new baby boy to the family