Another interesting mix of musicians have been added to the first annual Rothbury festival. The eco-friendly festival will take place in Rothbury, MI from July 3-6, featuring the likes of Dave Matthews Band, Widespread Panic, John Mayer, 311, Phil Lesh & Friends, Modest Mouse, Primus, Thievery Corporation, Snoop Dogg, Michael Franti & Spearhead, Keller Williams and The WMDs, Yonder Mountain String Band featuring Jon Fishman, the Disco Biscuits, Mike Gordon, and STS9, among others. The festivals latest round of editions includes Iron & Wines Sam Beam, Atmosphere, Steel Pulse, The Wailers, Ingrid Michaelson, Perpetual Groove, Kyle Hollingsworth Band, Boombox, Brother Ali, Greensky Bluegrass Band, Trampled by Turtles and Four Finger-Five. The addition of Hollingsworth means that all six members of String Cheese Incident will be at the festival with their individual projects: EOTO, Panjea, the Emmitt-Nershi Band, The WMDs and the Kyle Hollingsworth Band. As previously reported, Hollingsworth will also hit the road this week for a short club tour with The Fiery Furnaces.