This week’s artist list: Billy Idol Bob Segar and the Silver Bullet Band Boz Scaggs Crosby, Stills, Nash, and Young Def Leppard Dire Straits Foreigner Genesis Guns and Roses Jefferson Starship John Mellencamp John Parr Journey Julian Lennon Kansas Loverboy Mike + Mechanics Tears for Fears The Clash The Fixx The Kinks The Police Toto…