JOHANNESBURG, SOUTH AFRICA - OCTOBER 02: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend a Creative Industries and Business Reception on October 02, 2019 in Johannesburg, South Africa. (Photo by Chris Jackson/Getty Images) Prince Harry and Meghan will serve as the campaign chairs of Global Citizen’s effort to deliver COVID-19 vaccines to medical workers in the world’s poorest countries.The Duke and Duchess of Sussex will appear at "Vax Live: The Concert to Reunite the World," to be taped Sunday at SoFi Stadium in Los Angeles and air on ABC, CBS, FOX, YouTube and iHeartMedia broadcast radio stations on May 8, Global Citizen, the anti-poverty nonprofit, announced Tuesday.Harry and Meghan are also leading an effort to raise.