Blackstock, a former talent manager, died Aug. 7 at 48 following a three-year battle with cancer. Clarkson kept the family matter private, but a resurfaced clip from the July 26 show of the Grammy winner's now-postponed Las Vegas residency appears to allude to the tolls of the diagnosis.

The death of Kelly Clarkson’s ex-husband, Brandon Blackstock, has rocked her fans, who are now looking back at her recent Las Vegas performances in a different light. When some of her fans attended the Studio Sessions show last weekend,