Ozzy and Sharon Osbourne’s son, Jack, is going to be a father.

Jack and his fiancée, Lisa Stelly, are expecting their first child. The 25-year-old Osbourne told CNN, “I’m excited. I’m a little nervous.” When Ozzy heard the news, he reportedly jumped for joy and later said, “I’m shocked. I think it’s fabulous.” It won’t be the Prince of Darkness’s first grandchild though – he already has four from his two children from his first marriage.