also began achieving mainstream popularity. In 1994, Epitaph released Let's Go by Rancid, Punk in Drublic by NOFX, and Smash by The Offspring, each eventually certified gold or better. That June, Green Day's "Longview" reached number one on Billboard's Modern Rock Tracks chart and became a top forty airplay hit, arguably the first ever American punk song to do so; just one month later, The Offspring's "Come Out and Play" followed suit. MTV and radio stations such as Los Angeles' KROQ-FM played a major role in these bands' crossover success, though NOFX refused to let MTV air its videos.[324] Smash went on to sell over twelve million copies worldwide, becoming the best-selling independent-label album of all time.[325] Following the lead of Boston's Mighty Mighty Bosstones and two California bands, Berkeley's Operation Ivy and Long Beach's Sublime, ska punk and ska-core became widely popular in the mid-1990s