The night before the AFC and NFC champions battle it out on the field for the coveted Super Bowl XXXVIII championship, CMT is throwing its own brand of tailgate party to celebrate. Toby Keith's Shock'n Y'all Super Bowl Party: A CMT Crossroads Special will kick off the country's biggest sporting event and will be telecast live from Houston, the home of Super Bowl XXXVIII. The one-hour concert will feature special musical performances by Keith, supported by his band and a gathering of very special friends. Scheduled to join Keith are Texas legend and collaborator Willie Nelson; Aerosmith's Steven Tyler and Joe Perry; Sammy Hagar; Darryl McDaniels (DMC); Chad Smith (Red Hot Chili Peppers); and jazz musician Wayman Tisdale. ""The Super Bowl always marks a time when friends can get together, enjoy the best game of football, talk about which television commercial they think is the funniest and be entertained by some of the best artists music has to offer,"" says Keith. ""It's an honor to be ask