Bay City Rollers were a Scottish pop rock band that gained massive popularity in the 1970s. Known for their catchy tunes and distinctive tartan outfits, they became teen idols and a global sensation, especially in the UK, the US, and Japan. Often dubbed "the first boy band," their energetic style blended glam rock and pop, and they played a major role in shaping pop culture during the era. Their fanbase, known as "Rollermania," rivaled that of The Beatles at their peak.