Create a 16:9 fictional livestream interface mockup showing [Public Figure Name] starting a surprise livestream on [Video Platform]. The main video area shows an original or authorized adult public figure seated casually in a warm indoor room, leaning toward the camera with a friendly expression, as if speaking directly to fans. Add a dark streaming-platform frame with a channel header, verified-style badge, subscriber or follower count, a subscribe-style button, a live viewer counter, and a right-side live chat column filled with fictional fan messages. Keep the interface believable and polished, with readable but invented display text, generic icons, and a modern social-video layout. Avoid real celebrity likenesses unless authorized, real celebrity names, real platform logos, real YouTube/Twitch/TikTok branding, real fan accounts, real subscriber metrics, QR codes, URLs, and misleading impersonation cues.
Output aspect ratio: 16:9.