Metallica is taking its WorldWired tour to South America next year, and they’re bringing along rock’n’roll wonderkids Greta Van Fleet. The band announced six stadium shows in Chile, Argentina, and Brazil next April, with Greta Van Fleet as special guests. Metallica’s WorldWired tour has raked in more than $110 million in the last 10 months, including legs in North America and Europe. Why is Metallica still such a top draw after all these years? Are you on the Greta Van Fleet train?