According to Nic Carter, Gwen Stefani's music video for 'Cool' features Erin Lokitz, the wife of No Doubt bassist Tony Kanal, as the new girlfriend of Stefani's ex-boyfriend. This revelation highlights the intertwined personal and professional relationships within the band, potentially affecting market sentiment around No Doubt's music and related merchandise. Such dynamics could influence trading strategies for investors in entertainment stocks linked to the band.