Gwen Stefani may be in for a majorly awkward reunion with her ex-husband. Gwen Stefani and her ex-husband, Gavin Rossdale, will reportedly be reuniting soon -- and Blake Shelton may be there too! According to a new report, the 47-year-old mother, who shares three children with Rossdale, Kingston, 10, Zuma, 8, and Apollo, 2, is planning to attend an event at her kids' school, which will also be attended by her current boyfriend, Shelton, and her former husband, Rossdale.