Biography Ephraim Mulenga ( Born 28 December 1997 ) Professionally Known As Phrase Or King Double Is A Zambian Born RnB Hip Hop Recording Artist And Television And Radio Personality . He Is The Founder And Ceo Of Kakoso Muchine Entertaiment ,He Is The Current Marketing Agent For Izani Electronic Billboards , And Former Mafken Radio Makerting Agent , Signed Under Uprise Music / Hoods Produktion Ink , In His Music Career He Has Worked With Well Known Zambian Artist Like Mjomba, Macky 2 To Mention A Fail , King Double Started Singing In A Church Choir In 2004 . He Became A Recording Artist In 2016 When He Mate A Producer Called Imk Afrika