Azúcar amargo
"Azúcar amargo" is a song recorded by Mexican singer Fey from her second album, Tierna la Noche. Written by Mario Ablanedo and produced by Ablanedo alongside David Boradoni, the song was released as the album's lead single on 16 October 1996, by Sony Music Mexico. A dance-pop song, its lyrics describe a romantic relationship that brings both pleasure and suffering; the title, which translates to "bitter sugar", is used in the sense of bittersweet.
The song achieved commercial success across Latin America, reaching number one in Mexico, Argentina, Chile, Colombia, and Peru. In the United States, it topped Billboard Latin Pop Airplay chart and peaked at number eight on the Hot Latin Tracks chart. "Azúcar amargo" is widely regarded as Fey's most commercially successful and signature song.