It’s been nearly 25 years since Def Leppard hit their commercial peak with the $12-million-selling ‘Hysteria’ album, but they can still pack ‘em in on the road. In fact, the veteran rockers’ latest run of dates — a package tour with fellow classic rock legends Heart — was the top-grossing draw of the last three months.
They faced some pretty stiff competition for concert dollars, too; with an over