AC/DC: Heavy Metal's Eternal Schoolboys at the O2 Arena

We've got some old songs and some new songs for you," AC/DC's singer Brian Johnson growled, in an accurate but dispiriting précis of the AC/DC concert-going experience. Watching the antique Australian hard rockers perform is like witnessing a venerable but tedious ritual with scant application to the modern world: heavy metal's version of Trooping the Colour.