The Bay City Rollers were a Scottish Pop/rock band of the 1970s. Their youthful, clean-cut image, distinct styling featuring tartan-trimmed outfits, and cheery, sing-along pop hits helped the group become among the most popular musical acts of their time. For a relatively brief but fervent period (nicknamed "Rollermania"), they were a worldwide sensation. Since the band's quick rise to, and subsequent fall from fame, the members have endured numerous and varied struggles regarding royalty payments, substance abuse, and personal legal problems.