The 2010s were an interesting time for pop music. This decade had shed the sexy outer layer, the anything goes attitude of the 2000s. It was a time for easily consumable radio hits and, in some cases, ...

Not every pop song is a hit right out of the gate. An artist dreams of their tracks climbing the Billboard charts upon its release, but sometimes that doesn’t happen until years—or decades!—later.

ROSÉ and Bruno Mars’ “APT.” joins the lofty company of BTS’ “Dynamite” as the only songs by acts prominent in K-pop (Korean pop) to have reached the top five on Billboard’s Pop Airplay chart. “APT.” ...