Kelly Clarkson recently performed at the Staples Center in Los Angeles and, while singing her current single "Piece by Piece," she got emotional on stage, CMT News reports.

And as she began to explain to her audience why she was crying, Clarkson accidentally blurted out that she is pregnant with her second child.

"I was not planning on announcing this, but I'm pregnant ... totally pregnant!" Clarkson confessed. "I didn't want you to think I'm on pills or something! Honestly, I'm so hormonal today. Nothing's wrong. Everything's great. I haven't vomited yet."

CNN reports that Clarkson and her husband Brandon Blackstock welcomed their first child together in June 2014. Clarkson gave birth to a baby girl, whom they named River Rose Blackstock.

It is unclear whether Clarkson and Blackstock's second child together will be a boy or a girl, however the Staples Center and many of Clarkson's fans took to Twitter to congratulate her on her pregnancy.

Check out their tweets below.

People reports that prior to her recent pregnancy announcement, Clarkson revealed that she was scared to have a second child.

I'm frightened to have another one," Clarkson told PEOPLE in February. "I want another one like in a couple years."

She added, "But I'm just a little frightened because [River is] so perfect."

Because of her easy parenting experience with her firstborn, Clarkson feels as though her second child might be a more difficult experience, she explained.

"I feel like something horrible's gonna come out of me. Because she's so great - like, the yin to her yang," she said.

"But I won't put that out there," she continued. "I'm gonna project happiness."