Gwen Stefani’s age leaves people genuinely baffled as youthful pop icon celebrates birthday

Gwen Stefani has blown fans away as she celebrates a very special birthday (Picture: TikTok/@jenniferhudsonshow)Gwen Stefani shocked fans as she celebrated a milestone birthday looking younger than ever.The 00s star – behind No Doubt’s biggest hits such as Don’t Speak and Just A Girl – appeared on the Jennifer Hudson Show TikTok account with a birthday sequence as she boogied through the corridors while the crew substituted her name into her hit Hollaback Girl.The blonde-