Nathan John Feuerstein (born March 30, 1991), known by his initials NF (stylized as ИF), is an American rapper, singer, songwriter, and record producer. NF achieved mainstream popularity in 2017 with Perception; the album charted at number one in the United States and was certified platinum, while its third single, "Let You Down", reached number twelve on the U.S. Billboard Hot 100, and was a top-ten hit internationally. He achieved similar commercial success with his follow up The Search (2019). Feuerstein's most recent album, Hope, released on April 7, 2023, had commercial success and peaked at number 2 on the US Billboard 200.