Stolt started his career in the late 1960s playing bass guitar in local rock bands. In 1974 he became the guitarist in Kaipa, a professional progressive rock band. In 1979 he left Kaipa to form his own group Fantasia and made two albums. The group split up in 1983 and Roine started woriking as a solo and session musician.
In August 1994 he released the CD The Flower King. The album was successful enough that Stolt founded the band The Flower Kings, which has been his main project since then.