Several groups have gone by the name Woo. 1. Woo is an electro-acoustic/ambient group consisting of the brothers Mark and Clive Ives. Their first albums originate as far back as 1982, and they have continued to release albums as recently as 2003. They produce a unique fusion of alternative, experimental, and electronic soundscapes with instrumental, acoustic guitar. The music can be described as experimental and relaxing. Most of their early compositions are instrumental, with vocals introduced on the album "A La Luna", and guest vocalists appearing on later albums.