Eric Church racks up some heavy metal this week with the latest round of certifications issued by the RIAA. “Hell on the Heart” and “Creepin’” have each gone gold, with each selling more than 500,000 downloads. “Drink in My Hand,” “Smoke a Little Smoke” and “Homeboy” have gone platinum for each selling more than a million downloads, while the Grammy-nominated song “Springsteen” has gone double-platinum.