The Bay City Rollers are a Scottish pop rock band known for their worldwide teen idol popularity in the 1970s. They have been called the "tartan teen sensations from Edinburgh" and are one of many acts heralded as the "biggest group since the Beatles". The group's line-up had many changes over the years, but the classic roster during its peak in popularity included guitarists Eric Faulkner and Stuart Wood, singer Les McKeown, bassist Alan Longmuir and his younger brother Derek Longmuir as drummer.
https://en.wikipedia.org/wiki/Bay_City_Rollers