Nothing's cheaper than free, and nothing's more thrilling than live music. For years now, the amphitheater at Hollywood's Young Circle has hosted diverse acts, from Galactic to Seu Jorge to the Wood Brothers. This summer's calendar includes a night of Caribbean music on June 20 and sounds from Argentina on July 18, and Afro-Brazilian big band Orchestra Rumpilezz makes its U.S. debut performance August 1. All of these gigs and more are perfect for lying out on the grass or making use of your dancing shoes with your fellow cheap-thrill seekers. There is generally food for sale, but the true cheap thrillists know to bring a picnic dinner.