The Bush frontman's son Zuma came out on stage with Rossdale at his band's New Jersey concert on Wednesday, Aug. 21. As the teenager joined his dad, Rossdale had the crowd sing "Happy Birthday" to ...

Gwen Stefani and Gavin Rossdale’s son is following in his stepdad’s footsteps. Zuma made his country music debut at Blake Shelton’s Ole Red bar in Oklahoma on Monday. Before the 15-year-old ...