Megurine Luka is a humanoid persona voiced by a singing synthesizer application developed by Crypton Future Media, headquartered in Sapporo, Japan. She uses Yamaha Corporation's Vocaloid 2 and Vocaloid 4 singing synthesizing technology. Her voice is sampled from Yū Asakawa. She has performed at live concerts onstage as an animated projection. Many songs have been created with her.