In the mid-'10s, artists like J Balvin and De La Ghetto redefined reggaetón, using gleaming arrangements and romantic lyrics to make dembow fresh. Their secret weapon has been Sky & Mosty, perhaps the genre's most important production duo since Luny Tunes. Where beats like "6 AM" two-step with reggae-influenced upstroke guitar, "Ginza" takes the club with an irresistible synth line.