Roos Denayer is a Belgian singer, songwriter and guitarist who mainly works in genres such as folk, jazz and electronic music. She is now best known under her stage name Rosa Butsi, which is a tribute to her Hungarian grandmother. She has become a well-known name in the Drum & Bass scene thanks to collaborations with artists such as Station Earth aka Blue Marble, with her most famous song in the genre being "Cold Green Eyes". Read more on Last.fm