Antonio Fernández Díaz known as Fosforito, (b. Puente Genil, Córdoba Province, 1932) is a flamenco singer and winner of the fifth Golden Key of flamenco singing. Only five of these have been awarded since the award's inception in 1862. Its previous winners were Tomás "El Nitri," Manuel Vallejo, Antonio Mairena, and Camarón de la Isla (posthumous).