American singer/songwriter Kristin Hersh arrives at BBC Radio 6. Hersh has performed as lead singer and guitarist for the group Throwing Muses and currently leads the hardcore punk-influenced power trio 50 Foot Wave. Her memoir, "Rat Girl," is due for release by Penguin Books on August 31. She is also the co-founder of the non-profit, open-source software project for recording artists, CASH Music. London, UK. 7/16/10.