Final answer:
Chicago DJ Steve Dahl led a rally against disco music in the late 1970s.
Step-by-step explanation:
Chicago rock DJ Steve Dahl led a rally against disco music in the late 1970s. He organized the Disco Demolition Night event at Comiskey Park in 1979. The event was a protest against disco music, which Dahl saw as shallow and superficial compared to rock music.
Learn more about Disco Demolition Night