Isobel Campbell is the former cellist and backing vocalist for Belle & Sebastian, as well as leader of The Gentle Waves. Mark Lanegan used to be the frontman of the Seattle grunge band The Screaming Trees and has recently played with Queens Of The Stone Age, and formed (together with Greg Dulli) The Gutter Twins. Lanegan has also been releasing solo albums since 1990.
Together, Campbell and Lanegan form a unique combination of gruff vocals and dulcet voices. They have released three albums so far: Ballad of the Broken Seas, which received a nomination in the 2006 Mercury Awards, Sunday at Devil Dirt, which was released in May 2008. The album received US release in Fall 2008. And finally their third album Hawk was released in August 2010.