Kelly Clarkson is putting her priorities where it counts during an incredibly difficult time for her family. As we've been reporting, the American Idol alum's ex-husband Brandon Blackstock just died after privately battling cancer for the last three years. Nobody had any idea he was sick at all until Kelly herself revealed that sad news this week while simultaneously announcing she was postponing a large chunk of her Las Vegas residency to grapple with the effect this has had on the two kids she shared with her late ex - daughter River, 11, and son Remington, 9.