Cecil rings in the summer season to begin today's MEDICINE BALL CARAVAN with The Jamies, Tweedy, Mungo Jerry and Janis Joplin. We'll also sample new releases by Willie Nelson & Merle Haggard (new duo record), Dwight Yoakam, Shelby Lynne and The Deslondes. Also: vintage David Crosby, Zuider Zee, The Rolling Stones, Fats Domino and more.