Jack Osbourne and wife expecting second child

Jack Osbourne is going to be a dad again.

He and wife, Lisa, are expecting their second child, she revealed in an announcement Tuesday on her blog.

"Jack and I are super excited to share with you all that we are expecting our second baby!" she wrote. "I am in my second trimester, feeling great & trying not to eat everything in sight. We feel so blessed that our family is growing & Pearl will have a little brother or sister to play with. It's crazy to think that we will soon be a family of four!"

Jack and Lisa Osbourne are already parents to a 15-month-old daughter named Pearl Clementine. Her arrival made Jack's parents, Ozzy and Sharon Osbourne, first-time grandparents.