Singer Kelly Clarkson is expecting her second child with husband Brandon Blackstock.

Clarkson who gave birth to daughter River Rose Blackstock in June last year, revealed the news of her second pregnancy in the middle of her concert at the Staples Center in Los Angles.

The 33-year-old singer-songwriter stopped during a performance of her track `Piece by piece` to share the news with her fans on Wednesday, reports femalefirst.co.uk.

Breaking down into tears as she broke the news, Clarkson said : `I was not planning on announcing this. I'm totally pregnant."

The former `American Idol` winner has previously spoken of her desire to have more children, but said she would wait until the end of her current tour.