J (musician)

Jun Onose (Japanese: 小野瀬 潤, Hepburn: Onose Jun; born August 12, 1970), better known by his stage name J, is a Japanese musician, singer-songwriter and record producer. He is best known as bassist and co-founder of the rock band Luna Sea since 1986. After they disbanded in December 2000, he focused on his solo career, which first began in 1997. He rejoined Luna Sea when they reunited in August 2010.

J ranked tenth on Bass Magazine's list of the 100 Greatest Bassists, and Luna Sea are regarded as one of the most influential bands in the visual kei scene. Musicians such as Shun (Totalfat), Ni~ya (Nightmare), Reita (The Gazette), and RxYxO (Coldrain) have cited him as an influence. Since 1997, J has had prominent names in the music industry playing on his albums, as his backing band, or appearing as guests at his concerts, including Scott Garrett, Billy Duffy and Ian Astbury (all three from The Cult), Franz Stahl (Scream), Steve Jones (The Sex Pistols), Duff McKagan and Slash (both from Guns N' Roses), and Takashi Fujita (Doom).