DJ Heavygrinder

Merveille was born in Seattle, Washington to a French father and a Japanese mother.^[3][4][5] She was raised in Japan's Kanagawa Prefecture, where she lived until the age of 14. While in her teens, her parents decided that she would receive education in the United States.^[6] She soon got involved in the art of DJing after returning to the US.^{[7][8][9][10]} In regards to this period, DJ Heavygrinder stated:

The genres of music she plays are house, electronica, indie, and trance.^[11] Her musical mentors and strongest influences include Cannibal Corpse, Pantera, Deicide, Justice, Gackt, L'Arc-en-Ciel, The Prodigy, Jamiroquai, Ryuichi Sakamoto, and Daft Punk.^[12][13]

Although she worked as an actress during her years in Japan, she has very little or no interest in acting.

DJ Heavygrinder also performed at AnimeMatsuri in Houston, Texas in March 2011, as well as March 2014.

Mervelle began performing as Marie Vaunt in 2018^[1]

She currently resides in Los Angeles, California and is married to fellow producer and DJ, Katfyr.^{[citation needed]}