[5] In August 2015, singer Joe Elliott stated that the album would consist of 14 tracks with a running time of around 55 minutes.

[6] Vocalist Joe Elliott has described lead single and opening track, "Let's Go", as "a call to arms and a classic Def Leppard song.

[7] Joe Elliott, observed Classic Rock, "is the first to admit that Leppard aren't Bob Dylan.

With its crackling guitar and nuclear-detonation bottom end, 'Let's Go' doesn't so much revisit 'Pour Some Sugar On Me' as move into its spare room, steal its cornflakes and start sleeping with its wife.

', which rips off Queen's 'Another One Bites the Dust' so shamelessly that it should come with its own stick-on handlebar moustaches… But for the most part, Def Leppard is the sound of a band who have rediscovered their sense of purpose.