YouTube is offering Hollywood celebrities and entertainers a free detection tool to help combat their deepfakes, expanding the Google-owned video platform's efforts to guard against AI-driven impersonations. Last month, YouTube introduced its likeness protection tool — which helps identify content in which a person's face appears altered or generated using AI technology — to government officials, journalists, and political candidates. The platform is now extending access to entertainers including actors and musicians, who face a heightened risk of having their likeness misused — potentially harming their careers and distorting shared realities. "We're expanding our likeness detection technology to the entertainment…