In honor of Opening Day, we call up 15 of the best baseball-themed songs (but we can't guarantee that none of the musicians used performance-enhancing drugs.)
The dapperly-dressed Punch Brothers, pictured here, turned back the clock with their bluegrass-infused Saturday afternoon set. "At Bonnaroo, you feel that instead of playing music for people, you're playing music with people," Brother Chris Thile said of the festival...