This year's 21 Under 21 list -- our annual look at the hottest artists in all genres who can't yet legally purchase alcohol -- includes bubblegum divas, punky boy bands, plucky country pairs, two types of rap duos, and one very large K-pop ensemble. The 21 creators celebrated below all make different types of tunes, but they've all achieved great things in their relatively short time on this planet.
Check our playlist of the greatest hits from this year's list: