This guy's name is Camui Gackpo - a Japanese VOCALOID developed and distributed by Internet Co., Ltd. as Gackpoid, initially released for the VOCALOID2 engine. His voice is provided by GACKT, a male Japanese singer, songwriter, actor, and musician. The symbol on the back of his fan and jacket is a stylized version of the kanji character for music. As you can see in our fanart Vocaloid Gackpoid cursor pack, this character features purple hair.