A number of additional artists have been confirmed for the Fourth Annual Joshua Tree Music Festival. The current roster includes New Monsoon, Kinky, Lotus, Particle, Toubab Krewe, Moonshine Still, Breakestra, Kaki King, Spam All Stars, Kan’Nal, Samantha Stollenwerck, Alfred Howard & The k23 Orchestra, The Axis Brothers (featuring Wally Ingram and Mighty Dave Pellicciaro), Groundation, Thomas Mapfumo & Blacks Unlimited and Victoria Williams. Discount tickets are now on sale for the event which takes place on May 19-21.