This year, OutKast’s magnum opus “Hey Ya!” turns 20. That means that for the past two decades the world has been shaking it like a polaroid picture to “Hey Ya!” But what does the song really mean?

Jeff Pearlman found the people who inspired the classic 1991 2Pac song, which has reverberated through hip-hop myth-making for decades. “Hey Ya!”’s outlook on relationships is bleak. André looks upon ...