Disco ___ (1970s)

ERA

["Think of a time period known for bell-bottoms, platform shoes, and the rise of dance music like \"Stayin' Alive.\""]

This clue refers to the 1970s as the golden age of disco music, where the word "era" fits perfectly as a time period. The blank hints at a short, common term for a historical span, and "disco" narrows it down to the decade when the genre dominated pop culture. It’s a straightforward fill-in-the-blank with no wordplay—just a nod to the music scene of that time.