Axl Rose caused quite a stir in Buenos Aires during Guns N’ Roses’ October 18th show. A technical glitch sparked a reaction reminiscent of the fiery 1990s-era Axl—when his on-stage walk-offs and chaos made headlines around the world. But the real story for rock fans was spotted right next to him: Slash appeared to be sporting a shirt from a band beloved by RATT loyalists everywhere— Stephen Pearcy’s original group, Mickey Ratt (circa 1977-1981 ). Born in Stephen’s San Diego