OSINACHI JOSEPH (nee Kalu) popularly known by the mononym SINACH, is a multi award-winning Nigerian Gospel music singer, songwriter, and senior worship leader at Believers Loveworld International. She is known globally for several gospel hits songs which include, 'WayMaker', 'I Know Who I Am', 'Great Are you Lord', 'Rejoice','He did it Again', 'Precious Jesus', 'The Name of Jesus', 'This Is my Season', 'Awesome God', 'For This', 'I stand Amazed' , 'Simply Devoted', 'Jesus is Alive' and many more.
In 2016, she was the first recipient of the LIMA Song Writer of the Decade Award,recognizing her outstanding and undeniable contribution to gospel music in the past decade, with her songs being sung in many countries, translated to many languages, on all continents of the world. In 2016, she received the African Achievers' Award for Global Excellence, putting her in a prestigious list of Africans which include Arch Bishop Desmond Tutu, Joyce Banda, Richard Mofe-Damijo, Fadumo Dayib, Babatunde Fashola, and a few more. Also in 2016 for the second time in a row, she won the Western Africa Artist Of The Year by Groove Awards in Kenya, and was listed by YNaija alongside Chris Oyakhilome, Enoch Adeboye as one of the top 100 influential Christians in Nigeria.