Hatsune Miku
, sometimes referred to as Miku Hatsune, is the name of a Vocaloid software voicebank developed by Crypton Future Media and its official moe anthropomorph, a 16-year-old girl with long, turquoise twintails. She uses Yamaha Corporation's Vocaloid 2, Vocaloid 3, and Vocaloid 4 singing synthesizing technologies. She also uses Crypton Future Media's Piapro Studio, a singing synthesizer VSTi Plugin. She was the second Vocaloid sold using the Vocaloid 2 engine and the first Japanese Vocaloid to use the Japanese version of the Vocaloid 2 engine. Her voice is modeled from Japanese voice actress Saki Fujita. Miku's personification has been marketed as a virtual idol and has performed at concerts onstage as an animated projection (rear cast projection on a specially coated glass screen).
Miku Sawai
She released her first album "Sentimental" on June 5, 2013. She then released the single , whose title track was used as the first ending theme to the 2013 anime television series "Kill la Kill"; the single peaked at 37 on the Oricon weekly charts. She released the single on August 13, 2014, whose title track is used as the first ending theme to the anime television series "Akame ga Kill!". She released the single on January 28, 2015; the title track is used as the ending theme to the anime television series "".