"Perro Fiel" ("Faithful Dog") is a song by Colombian singer Shakira, featuring American singer Nicky Jam. It was written by Shakira, Nicky Jam, Saga WhiteBlack and Juan Medina, and produced by the former three. The song was released on 29 September 2017 as the sixth single from Shakira's eleventh studio album, El Dorado (2017).