MEIKO is a Japanese virtual singer developed by Crypton Future Media. She was released in 2004 as part of the Vocaloid software series and is known for her powerful and expressive voice. MEIKO has been used in a wide variety of songs, from pop and rock to electronic and classical. She has also collaborated with numerous other artists, including Hatsune Miku, Kagamine Rin and Len, and GUMI. MEIKO is a popular figure in the Vocaloid community and has been featured in numerous concerts and events.