Radio DDR, the second album by Sharp Pins (the solo project of Lifeguard’s Kai Slater) is a giddy blast of power pop that understands, deeply, that the genre’s only goal should be to make age-old feelings like love and longing sound thrilling and new. Radio DDR earns its comparison points, slamming you so hard and so frequently with scream-a-long hooks that it feels like a greatest-hits collection. He’s also obsessed with youth culture, and to read him talk about its centrality in his life—“the only thing that I know I can do in the world is make youth spaces,” he says—unlocks a layer of meaning within Radio DDR. These songs are about love, by and large, but they also ache with the notion that certain parts of life will inevitably slip away. They lurch forward urgently, like Slater is trying to bottle the feeling of being young before the fountain runs dry.