Irving Ampofo Adjei (born 6 October 1994), known professionally as Headie One, is a British rapper, singer and songwriter. In 2018, he released the mixtape The One, which included the single "Know Better", featuring rapper RV, that became an "underground hit". He is a member of the drill rap group OFB.
Headie One is best known for his track "18Hunna" featuring rapper Dave, which peaked at number 6 on the UK Singles Chart. He has released seven mixtapes, 4 solo mixtapes and 3 mixtapes with fellow OFB rapper RV. In 2019, Headie One released his seventh and first mainstream mixtape titled Music x Road, which peaked at number 5 on the UK Albums Chart. He has since released Edna which peaked at number one on the UK Albums Chart, an album which pays homage to his mother, Edna Adjei.