Zep Eternal: Why Is Led Zeppelin Still Popular? Thirty-seven years after Led Zeppelin's debut, their albums continue to sell in the millions, while their music inspires everyone from Aussie metalheads to Nashville punks BRIAN HIATT The studded leather bracelets and Napoleon Dynamite merchandise at Hot Topic target customers between the ages of fourteen and twenty-two—kids who weren't born when Led Zeppelin broke up in 1980. Nonetheless, the all-time top-selling band T-shirt at the chain's 700-plus mall stores is Zep's Swan Song tee—the one bearing the image of a naked, winged Apollo. "It's not like with the CBGB or Ramones T-shirts,...