structural:expansion, stylistic:style_transfer, quality:correction, information:extraction, information:classification
Vietnam

Bolero music has also spread to Vietnam. In the 1930s, the nation grew fond of modern music, which combined Western elements with traditional music. Vietnamese bolero is generally slower tempo compared to Hispanic bolero, and is similar in style to Japanese enka and Korean trot. Such music was romantic, expressing concepts of feelings, love, and life in a poetic language; this predisposition was hated by Viet Minh, who strived towards shaping the working class at the time.

This genre became colloquially known as yellow music, in opposition to the nhạc đỏ (red music) endorsed by the Communist government of Hanoi during the era of the Vietnam War. As a result of North Vietnam winning the war, the music was banned in 1975. Those caught listening to yellow music would be punished, and their music confiscated. After the Fall of Saigon, many Vietnamese migrated to the United States, taking their music with them. The ban was lightened in 1986, when love songs could be written again, but by then the music industry was killed.

The government of Vietnam also prohibited the sale of overseas Vietnamese music, including variety shows like Asia and Paris by Night. In recent years however, bolero had grown popular again, as more overseas singers performed in Vietnam. Additionally, singing competition television series like Boléro Idol have grown popular, with singers performing songs, including songs formerly banned.