4,000 Fans. One Stage. And an 18-Year-Old Answered George Jones’ Question: “Who’s Gonna Fill Their Shoes?” That night at the Grand Ole Opry, more than 4,000 fans gathered with one question hanging in the air—“Who’s next?” And when 18-year-old John Foster stepped into that sacred circle, the world got its answerThe lights dimmed. The crowd hushed. And then his voice rose—gentle, warm, and full of a history he hadn’t even lived, but somehow carried anyway. It wasn’t just singing. It was storytelling. And with every note, John honored the ghosts of the greats who came before him. For one breathtaking moment, the Grand Ole Opry wasn’t just a venue—it was home. And John? He wasn’t just debuting. He was inheriting something holy…