He attended Niigata Higashi High School and formed his first band there, but dropped out in 11th grade to pursue a musical career while working part-time at the nightclub Hacoban.
When returning in 2007, Okamura started a comeback visually similar to his 1980s look, but was arrested on 5 February 2008 for possession of crystal meth.
In 2011, Okamura began an official tour again and released the two-part self cover album, Etiquette Pink and Purple.
In 2013, he released his first single in six years, "Viva Namida", which was revealed to become the opening theme to Shinichiro Watanabe's Space Dandy.
In the music video for this single, an anime version of Okamura dances and sings along with the Space Dandy cast.
[6] Yasuyuki Okamura's most recognizable symbol in Japan is the Peach Mark, a distinct heart-peace sign-happy face hybrid, usually coloured pink.
It has since then been used in a wide variety of media, including merchandise, concerts, and music videos, with occasions where Okamura will use the Peach Mark in lieu of his name on promotional materials.
Okamura is also known for his split use between colourful surrealism and minimalism, with the covers of Home Tutor (a bright collage featuring horses, water, an enormous child, an African-American angel, and himself) and Me-imi (a single green Peach Mark with a long tongue) as the best examples respectively.
He doesn't go to college or have a steady job, but instead spends his days travelling through Tokyo with artist Eriko (Kahori Fujii) and punk pizza delivery boy Kinta (Kazuhiko Kanayama).