Kim Na-hyun (Korean: 김나현; born November 2, 2002), known professionally as Effie (에피), is a South Korean rapper and musician. After she initially gained popularity on SoundCloud, she debuted in 2020 with the single Highway. She mainly performs melodic trap, cloud rap and synthpop genres. Effie's debut EP E was released on March 28, 2025, which includes her most recent popular single down. She released her second and most recent EP pullup to busan 4 morE hypEr summEr it’s gonna bE a fuckin moviE on August 1, 2025, which included rage influences into her usual electropop/hyperpop sound. The EP also ended up as the best Album of 2025 according to the New York Times. Shortly after the second EP, she opened for breakout popstar & rapper 2hollis in Seoul on August 21, 2025. She is a member of the creative collective of MY UNNIES, made up of her friends, including her producer kimj, and artist The Deep. Her instagram account is @effi3e. <a href="https://www.last.fm/music/Effie">Read more on Last.fm</a>. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.