Hatsune Miku is a virtual singer and mascot character developed by Crypton Future Media, released in 2007 as a voice synthesizer software using Yamaha's VOCALOID technology. She is depicted as a 16-year-old girl with iconic long teal twin-tails and has become a global cultural phenomenon with millions of user-created songs. Miku has headlined numerous live concerts featuring holographic performances and is widely regarded as the face of the VOCALOID franchise.