Jack Osbourrne and his wife Lisa announced Saturday that they’re getting ready to welcome another baby.

Jack & Lisa Osbourne Expecting

Jack and Lisa took to Instagram over the weekend, posting a snap of their 2 ½-year-old daughter Pearl Clementine and revealing that she’d soon be a big sister. “Supprise!!!!! #round2 #babyinbound,” Osbourne captioned the picture.

On her mommy blog, Lisa went into further detail about her current pregnancy and Pearl’s eagerness to be a big sister.

“I’m pregnant! Pearl is very happy to become a big sister,” Lisa wrote. “She diligently reads her ‘I’m a big sister’ books every night & recites to me her plans of bathing, feeding, singing to, and holding the baby. We are more than halfway through this thing & are very excited to be parents again! Thanks for all the well wishes.”

“The best has been Pearl hitting these major milestones from crawling to walking to talking,” Jack told People last year. “That’s been really enjoyable for me to come home to after work.”

Jack, 29, and Lisa, 28, who’d like to have about five kids according to Jack’s mother Sharon Osbourne, have been married since 2012.