There will be two performances this week of a very special edition of the Louisiana Crossroads Series at the Acadiana Center for the Arts: 25 Years of Steve Riley and the Mamou Playboys. Scheduled to join us on Tuesday morning's MEDICINE BALL CARAVAN (11am-noon Central Standard on 88.7FM or www.krvs.org) to reflect a bit on this period is the frontman himself, Steve Riley.