In a special show, the gang is joined by rock musicians Matt Malley, Mark Poulin & Rich Kennedy plus award-winning record producers Chris Billias & Don Falcone to discuss the making of “Roswell,” the new UFO-themed CD by Mack’s band, SKY CLUB. Topics include how to write a hit record, why M&Ms are the new scourge of the rock world and the best in musician jokes. What do you call a guy who hangs around with musicians? (A drummer.) Special guest: Raven.