Gavin Rossdale says co-parenting with Gwen Stefani is a 'two-lane highway' Gavin Rossdale told Fox News Digital that he and Gwen Stefani "don't ever merge" when it comes to raising their three kids. NEW You can now listen to Fox News articles! Gavin Rossdale compares his co-parenting relationship with Gwen Stefani to a "two-lane" highway that doesn't merge. During an interview with Fox News Digital, the Bush guitarist talked about his relationship with his ex-wife and how they raise their kids: