Ten-time nominee and five-time GRAMMY® Award-winning singer/songwriter and producer, Lalah Hathaway has announced South African singer, songwriter and performer Langa Mavuso is the supporting act for her “An Intimate Evening with Lalah Hathaway” four-concert tour presented by Liberty. The tour begins in Johannesburg at Montecasino’s Teatro on Friday, 19 January followed by an 8pm concert on Saturday,…