Concerts scheduled by U.S. pop star Pharrell Williams in South Africa next month face disruptions from pro-Palestine protesters over a promotional deal he has with major retailer Woolworths, which has trade ties with Israel. The Grammy award-winning producer and performer has been targeted by the South African branch of the international Boycott, Divestment and Sanctions against Israel (BDS) movement. It objects to Israel's 48-year-old occupation of territories where Palestin