Brandi Carlile is one of many musicians who have signed a black acoustic guitar that is being raffled off by Good Radio Shows. The proceeds will support Peace Talks Radio, a show featured on Good Radio Shows. Tickets are $20 each, 3 for $50, and deadline to purchase tickets is May 4, 2011. Go here for more information (and a video about the guitar will be coming soon as well). Other artists who have signed the guitar are Indigo Girls, Steve Earle, Robert Cray, Dar Williams, Loudon Wainwright, Shawn Mullins and more! Best of luck to you if you choose to purchase a ticket!