Jack Osbourne's wife Lisa Osbourne is pregnant.

This will be the second child for the couple, who are the proud parents to 15-month-old daughter Pearl.

"Jack and I are super excited to share with you all that we are expecting our second baby!" she wrote on her mommy blog RaddestMom.com.

"I am in my second trimester, feeling great & trying not to eat everything in sight," she said. "It's crazy to think we will soon be a family of four," she added.

Lisa and Jack married in October 2012 in Hawaii after more than a year of dating.

Friends gushed about Lisa, calling her a "Supermom."

"She made this huge transition from model and party girl, to wife and unbelievably devoted mom!" the insider told Us Weekly. "She started a mommy blog, because she has literally read every book and is becoming a baby expert. She would like to maybe write a book for first-time moms -- it's something she has started thinking about."

Fans of the couple left congratulatory messages on Lisa's blog.

One person wrote: "OMG I'm so happy for you all great news!!!!!!!!! I'm sure Sharon and Ozzy are super excited as well. Congratulations Pearl will love her sibling, it's good that they will grow up and be close like Jack and Kelly."

Another added: "Woohoo! Congratulations!! You both are such awesome parents :)."

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