“Closer,” one of the longest running No. 1 hits on Billboard’s Hot Dance/Electronic songs chart, has now been certified diamond in the U.S., according to a Forbes.com article. The track has achieved shipments of at least 10 million units. The biggest hit by The Chainsmokers, dance production duo Alex Pall and Andrew Taggart, also features the vocal talent of Halsey, the stage name of singer Ashley Nicholette Frangipane. The blockbuster release had last been certified at seven-times platinum by the RIAA (Recording Industry Association of America) in March of 2017. The September 16, 2018 piece tells how The Chainsmokers and Halsey both broke the news of the advancement of their global smash hit from multi-platinum to diamond status on their Instagram pages by posting photos of themselves with their new plaques honoring the achievement. Jimmy Kimmel presented The Chainsmokers with their plaques. The surprisingly rapid rise and persistence at the top of the charts of “Closer” was described in the article. The single topped the Billboard Hot 100 record chart in late summer 2016. It dominated the all-genre singles listing for months. The successful song collected a string of awards and has helped both acts to earn Grammy nominations. The tune was nominated for a Grammy in 2017 in the Best Pop Duo/Group Performance category. “Closer” continues to gain more sales, streams and radio play. The article says the track was the longest running No. 1 hit on the Hot Dance/Electronic chart until recently being passed by Zedd, Maren Morris and Grey’s “The Middle”. For The Chainsmokers, who already had several top 10 songs, “that one tune pushed them over the edge and made them true superstars,” and for Halsey, a rising star with a large fan base, the song “was truly her breakout hit single,” says Forbes.