Legal name: 吉井和哉
Kazuya Yoshii (吉井和哉, Yoshii Kazuya, born October 8, 1966 in Tokyo) is a Japanese musician and singer-songwriter. He is best known as lead vocalist and rhythm guitarist of the rock band The Yellow Monkey. When they went on hiatus in 2001, before officially disbanding three years later, Yoshii started a solo career in 2003 under the name Yoshii Lovinson. He switched back to his old name in 2006 and The Yellow Monkey reformed in 2016.