RIOTUSA

Ephrem Louis Lopez Jr., known professionally as RiotUSA, is an American record producer and songwriter of Puerto Rican descent. Born in Manhattan, he is best known for his musical productions for rapper Ice Spice, whom he met in 2021 at the State University of New York at Purchase.

RiotUSA first gained major recognition in late 2022 after producing Ice Spice's breakout single "Munch (Feelin' U)", along with her follow-up singles "Bikini Bottom" and "In Ha Mood". He co-wrote and produced the entirety of her debut extended play, Like..? (2023), while also serving as executive producer on the project. That same year, he produced and co-wrote "Barbie World" (with Nicki Minaj and Aqua) from the soundtrack to the 2023 film Barbie, and co-wrote the remix of "Karma", by Taylor Swift featuring Ice Spice.