The story of the Bay City Rollers remains one of the most fraught in 20th century pop music history, with death, abuse and further behind the scenes horrors an absolutely central part of the story of the huge wave of boy-band pop mania that swept the band to massive attention in the UK and beyond. Any number of compilations exist; the 2000 compilation The Definitive Collection is as good a starting point as any, with the late-end-of-UK glam stompalongs like “Saturday Night” and “Shang-A-Lang” among others giving a sense of the madness.