"O Tú o Ninguna" (English: "Or You or Nobody") is a song written by Juan Carlos Calderón and produced and performed by Mexican singer Luis Miguel. The song is a bolero in which the protagonist cannot envision his life without anyone else besides his love interest. It was released as the second single from the album Amarte Es un Placer on 6 September 1999. The track topped the US Billboard Hot Latin Songs chart; and reached the top-five in Guatemala, Nicaragua and Panama.