A viral tweet started as a dig at young women. Then, Gen Z and millennials turned it into something so much bigger. Candi Staton, the “Queen of Southern Soul,” once said that her 1976 disco hit “Young Hearts Run Free” had longevity because “every generation can identify with it.” That seems to be true given its recent resurgence on social media. Since early this year, social media users have posted videos of themselves, oftentimes running blissfully in slow motion, with the song playing in the