The Bay City Rollers are a Scottish pop rock band known for their worldwide teen idol popularity in the 1970s. One of many 1970s acts heralded as the "biggest group since the Beatles", they were called the "tartan teen sensations from Edinburgh", and sold 5 million albums. Their classic line-up during their peak popularity included guitarists Eric Faulkner and Stuart Wood, singer Les McKeown, bassist Alan Longmuir and his younger brother Derek Longmuir on drums.
https://en.wikipedia.org/wiki/Bay_City_Rollers