Little can be said about AC/DC that isn't already deeply understood by virtually everyone. Their relentless power chords have ruled rock music and endured through all of its varying forms for nearly three decades. There's not a rock band on MTV or in the basement that doesn't bow before the masters of dirty deeds. And, they're still going strong, with 2000's Stiff Upper Lip reaching platinum-plus status. The classic Back In Black is the recipient of one of very few RIAA Diamond Awards for sales of ten million.