AC/DC have been on a highway to hell and back over the last eight years. By the end of their 2016 Rock or Bust world tour, Angus Young was the last man standing of the original line-up.

His brother Malcolm Young was suffering from dementia, drummer Phil Rudd was under home detention for drug possession and singer Brian Johnson had to be replaced by Guns N’ Roses Axl Rose due to hearing problems.

To make matters worse, bassist Cliff Williams announced his retirement from touring and then…