Mystery Theme by BruceM

Question 11

What disco song, the unofficial theme song of the 1979 Pittsburgh Pirates, hit #2 on the Billboard Hot 100 behind Donna Summer's "Hot Stuff"? This song is the biggest hit for a Philadelphia quartet that also sang "He's the Greatest Dancer" and "Lost in Music."

A fictional live performance of this song wins a $25,000 prize for the West Eastman High School music department.

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