cosMo@暴走P (cosMo@Bousou-P), who is also known as Kuroneko Antique (黒猫アンティーク), is a popular composer. He is known for creating incredibly high-speed songs with the tempo that exceed 200 beats per minute, and is most popular for his "Infinity" series and his "Bousou" series. Most of the lyrics appearing in the series are the strange, irrational stories known as "denpa song" (addictive songs with weird and incoherent lyrics) in Japan. He has received the "High-Speed Development Miku Master" title on Niconico Video.

His main profession is an animator. He, however, introduced himself as "an animator and a computer music apprentice" recently. Many of the pictures in his videos are of his own drawing, and some of them are of his cousin Nanashi's, who is an illustrator too. CosMo's illustration style is characterized by the grunge coloring and the utilization of saturated textures. He is also an utaite. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.