Take Rat Pack-inspired aesthetics and all the kitschy-cool goodness that goes along with them, add ice-cold martinis and lush, finger-snapping sounds, and you've got the recipe for a cocktail-music revival. It's basically an update of the hip, quasi-easy-listening sounds of the '50s and '60s, but done with indie-rock irony and updated loungecore style.

Notable Artists: Combustible Edison, Frenchy, Friends of Dean Martinez