Marshmello is an American electronic music producer and DJ known for his anonymous persona characterized by a white helmet resembling a marshmallow. Emerging in the mid-2010s, he produces across electronic dance music subgenres including future bass, trap, and progressive house, and is noted for melodic, vocal-driven singles and polished pop-EDM production that often features collaborations with mainstream pop and hip-hop artists. Jelly Roll is an American singer-songwriter from the Southern United States who began his career in the 2000s and gained broader recognition in the 2010s and 2020s; his music spans country, Southern rock, hip hop, and contemporary country-pop, frequently combining storytelling lyrics with emotive, gritty vocal delivery.