Pink Expecting Second Child With Carey Hart

A big congratulations are in store for Pink and her husband Carey Hart!

The singer announced Saturday she is pregnant with her second child, via an Instagram photo that shows her sporting a big baby bump and standing next to the couple's five-year-old daughter

, Willow Sage Hart, who they welcomed into the world in 2011.

"Surprise!" Pink wrote.

The news isn't a huge surprise considering the singer sat down on Good Morning America in May and couldn't help but gush over being a mom, hinting that she definitely wanted more kids.

"I love being a mama," she smiled. "I made a choice a long time ago that I was going to have a successful family and that is my absolute number one goal in life."