No Doubt was so different from anyone else. That's what made them so special! They paved their own lane! | Perez Hilton shares video he took of Gwen Stefani and the guys performing "Ex-Girlfriend" at their new Las Vegas residency at The Sphere. | Visuals | Adrian Young | Tom Dumont | Tony Kanal Watch above! Enjoy! SHARE! The post No Doubt - "Ex-Girlfriend" (LIVE at The Sphere Las Vegas) appeared first on Perez Hilton.