Guardian: English is losing it's grip as the language of pop

"Until recently, English was its lingua franca, and to sing in any other language relegated an artist to the second tier, successful only in their own region, unless they had a rare border-crossing novelty hit. But in 2018 a bubbling linguistic pot came to the boil when worldwide breakthroughs by the K-pop boybands BTS and Monsta X, and Spanish-speaking rapper/singers J Balvin, Ozuna and Bad Bunny, all of whom make a point of performing in their own languages, upended convention" - Guardian.