KOTOKO (real name ?????—Horikawa Kotoko), born on January 19, 1980 in Sapporo, Hokkaido Prefecture, Japan, is a female j-pop electronic/dance vocalist whose songs draws on electro rock, techno and trance. She has released five albums (three associated with Geneon and two associated with I've Sound), twelve maxi singles (seventeen overall) and two DVDs that were released in the US. She also composes and writes lyrics (for herself as well as other singers in I've Sound) for numerous other song collections.