A source said Blackstock "chose to move on with someone Kelly knew and trusted," which "just adds to the person he ended up being to her."

Brandon Blackstock's "soulmate" Brittney Marie Jones, identified in Blackstock's obituary as his "loving partner in life and business," previously worked as Kelly Clarkson's production assistant.

Kelly Clarkson is grieving her ex-husband Brandon Blackstock after a “messy, painful” divorce from his years before his August death. On August 7, reports emerged that the 48-year-old talent manager passed away from cancer,