Frost Children is the music of New York City-based siblings Angel and Lulu Prost, who make kinetic, shape-shifting pop sounds that draw from dozens of disparate styles at once. The duo create a blend of playful, mysterious, and ridiculous sounds and genre-transcending experiments. Their 2023 album Speed Run referenced '90s R&B one second, melodramatic mall punk the next, and companion piece Hearth Room was more organically produced but also moved quickly from sound to sound as Frost Children found new articulations of their surprisingly catchy pop.