On the heels of sharing the stage with Twenty One Pilots and Circa Survive, Saint Slumber probably has a pretty solid idea of what’s cool, so it makes sense they’d write a song about it. Their latest release, “Cool” (from the upcoming " YOUTH//1 EP," out on April 28) starts off with crackling fuzz, background noise and a blitzed out synth before launching itself into a smooth melodic synth lick that later frames the song’s sweeping chorus. It’s an instantly catchy track that melds elements of indie rock with R&B, post-rock and EDM, but packages them all in a radio-ready way. Check out “Cool” streaming below, and catch the band live at the Delancey 4/29. – Olivia Sisinni