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 Centre 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.