Bay City Rollers are a Scottish pop rock band who achieved massive worldwide popularity as teen idols in the 1970s, often hailed as the biggest pop phenomenon since the Beatles. Known for their tartan outfits and catchy tunes, the band sold between 120 and 300 million records globally, making them one of the best-selling music acts of all time. Their classic lineup during their peak years included Eric Faulkner, Stuart Wood, Les McKeown, Alan Longmuir, and Derek Longmuir. Their debut album Rollin' topped the UK charts, followed by more chart-topping albums and hit singles like Bye, Bye, Baby, which became the best-selling single in the UK in 1975. International success continued with albums such as Wouldn't You Like It and Dedication, though their popularity began to fade by the late 1970s. Despite struggles with management and finances, their legacy endured through successful compilation albums and the continued support of their fanbase. Today, the group performs with Stuart Wood as the only original member alongside new musicians, keeping the Bay City Rollers' sound alive for new generations.