Utsu-P (鬱P) (born December 1, 1990) is a Japanese musician. He is best known for his work using the VOCALOID voice synthesis software. In addition, Utsu-P has performed as a DJ and maintained two further musical projects; the metalcore band OHAYOGOZAIMAS, and the alternative idol group Zsasz.
Utsu-P was born in Nagoya, Aichi Prefecture, Japan. He taught himself to play bass guitar to play with his high school friend, Nagi, who already knew how to play guitar.
In 2008, at the age of 17, Utsu-P began releasing music on the website Nico Nico Douga, making use of the VOCALOID voice bank Hatsune Miku. In August 2013, Utsu-P released his first nationally distributed album Warufuzake
In 2015, Utsu-P, along with guitarist Nagi, formed the melodic metalcore band OHAYOGOZAIMAS, for which he is the composer, bassist, and leader.
In 2019, Utsu-P formed the Japanese idol group Zsasz, debuting with their first track, Peter Peter which released on YouTube. In 2023, Zsasz announced their disbandment with their final live performance taking place on November 4.
In addition to his work with OHAYOGOZAIMAS and Zsasz, Utsu-P has written and produced songs for other acts and artists.