"I'm hot, sticky sweet/From my head to my feet, yeah." Those words truly defined the '80s, an era when MTV was at the apex of American pop culture and British rockers Def Leppard released their greatest album, Hysteria. Guess what, ladies and gents? It's time to break out the Aquanet and tease up those bangs again. Def Leppard is back and cashing in on all of the arena-rock majesty with Mirrorball, a live double album filled with such Reagan-era touchstones as "Animal," "Armageddon It," "Photograph," and, yes, "Pour Some Sugar on Me." But ask yourself this, "Do you take sugar? One lump or two?" Poison opens.