Jam In The Van was in full effect at this past California Roots Music & Arts Festival in May. In addition to filming the likes of Fishbone, Fortunate Youth, Beebs & Her Money Makers, Ethan Tucker, KBong they also filmed Dirty Heads inside their Solar-Powered van. You can read all about Jam In The Van by clicking HERE! Check out all of the other videos Jam In The Van has by clicking HERE! Kudos to anyone who catches The Pier sticker inside their van…