David Oyelowo is serious about inspiring positive change in the world. The actor will be honored on June 4 by the Diamond Empowerment Fund, a nonprofit co-founded by Russell Simmons, with the Diamonds Do Good International Vanguard Award. The award, which will be given to Oyelowo during the organization’s annual awards gala in Las Vegas, recognizes his achievements in the arts and in the educational empowerment of vulnerable girls in Nigeria. Oyelowo told HuffPost that he prefers projects that showcase Africa’s overlooked history, such as “United Kingdom,” which highlighted Botswana’s role as a leading diamond-producing nation.