AC/DC moved to Britain from Sydney in 1975 & soon set up a residency at Londons Marquee Club. Their short hair (including the odd mullet) loud rock & attitude chimed well with the lingering pub rock & soon-to-be punk crowd. They werent really a band for guitar solos & singer Bon Scott was the original bike-riding speed-snorting fighting man. An ex-convict he lived life fast & short; he died in February 1980 just before BACK IN BLACK their huge-selling album took off & the second period of AC/DC (with Brian Johnson as lead vocalist) was ushered in. BACK IN BLACK has gone on to sell 45 million copies worldwide & as the band have become a global phenomenon so their reclusiveness has increased. Mick Wall the don of heavy metal writing seeks to penetrate the wall around the Young brothers & write the first authoritative in-depth critical account of AC/DC.