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 drummer Derek Longmuir. The current line-up (since 2018) includes original guitarist Stuart "Woody" Wood, singer Ian Thomson, bassist Mikey Smith, keyboardist/singer John McLaughlin and drummer Jamie McGrory.

Their debut album, Rollin' (1974) debuted atop the UK Albums Charts and spent a combined total of fifty-eight weeks on the UK Albums Chart. Their follow album studio album Once Upon a Star (1975) continued this success, again, debuting atop the UK Albums Chart. The album yielded the successful singles "Bye, Bye, Baby", which topped the charts in the United Kingdom, Ireland and Australia, and "Keep On Dancing". "Bye, Bye, Baby" was the best selling single in the United Kingdom in 1975. Their first album to be released in the United States and Canada, Bay City Rollers (1975) peaked at number twenty on the U.S Billboard 200 and number one in Canada.

Their international dominance continued with the release of Wouldn't You Like It? (1975), Rock n' Roll Love Letter (1976), Dedication (1976) and It's a Game (1977). Their significance in international charts began to decline in 1978 upon the release of Strangers in the Wind, which failed to chart in the United Kingdom, but reached the top five in Japan. Further releases Elevator (1979) and Voxx (1980) made little impact on international charts.

Despite their international dominance during the 1970s and early 1980s, the Bay City Rollers career was marked by financial difficulties and mismanagement. According to the BBC, the Bay City Rollers sold 120 million records.