Hatsune Miku—a 16-year-old android with twin turquoise pigtails—is a singing voice synthesizer. And she sells out arenas. Vocaloid software allows users to create songs "sung" by voicebanks. This democratized music production, launching real-world producers like Kenshi Yonezu (who started as a Vocaloid producer, Hachi ) into stardom. Miku’s concerts use holographic projection, blurring the line between performer and software. This directly influenced the "virtual YouTuber" explosion.