Lisa Osbourne wrote on her blog appropriately named Raddest Mom that she and husband Jack are expecting their second child.

"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!"

Their daughter Pearl was born in April 2012.  Since her birth, Lisa has become something of a "Supermom," a source told Us Weekly.

"She made this huge transition from model and party girl, to wife and unbelievable devoted mom!" the insider said about Lisa Osbourne.

Jack, 27, and Lisa married in October 2012.

Just recently, Jack Osbourne posted the sweet tweet below about his wife and daughter, and included a picture on Instagram.

I love my ladies. :-) https://t.co/leIeow4iak

— Jack Osbourne (@MrJackO) August 4, 2013