The 'My Life Would Suck Without You' singer announced her happy baby news mid-way through a concert in Los Angeles on Wednesday, 19 August.
After becoming emotional during a song, Kelly blurted out during her Staples Centre gig: "I wasn't planning on announcing… totally pregnant! I would like to apologise to my husband.That was not planned. I just didn't want you to think I was crazy or something. Honestly I'm so hormonal today. Nothing's wrong, everything's great. I haven't vomited yet. That's a win, y'all!"
Back in June, Kelly had actually said she wanted to be pregnant after her 'Piece By Piece Tour' had finished: looks like she got her wish a little early!
She had said: "After tour I want to start for the next one, because it's hard being a woman and wanting kids and fitting in career. I want them to be close together, because the other two are close together, my step-kids."
Kelly and her husband Brandon Blackstock are already parents to an adorable little girl named River Rose, who was born in June 2014. They married in October 2013. Brandon is a talent manager who is the stepson of country superstar Reba McEntire.
Congrats to Kelly and Brandon!
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!