This Oct. 20, 2019 file photo shows Mariah Carey singing during a concert celebrating Dubai Expo 2020 One Year to Go in Dubai, United Arab Emirates. AP PHOTO
NEW YORK CITY: Mariah Carey, Metallica and The Jonas Brothers will headline a free concert in New York City's Central Park next month to mark the 10th anniversary of the Global Citizen Festival organized by the international nonprofit fighting extreme poverty.