VIDEO: Kelly Clarkson announces pregnancy during gig

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

The 33-year-old singer-songwriter - who gave birth to a daughter named River Rose Blackstock in June last year - revealed her happy news in the middle of her concert at the Staples Center in Los Angles last night, stopping during a performance of her track 'Piece By Piece' to share the news with her fans.