Pheng Xat Lao was the national anthem of Laos. It was written in 1941 by Thongdy Sounthonevichit (1905-1968) en in 1947 it became the national anthem of Laos. The original lyrics were replaced in 1975, when the Lao People's Democratic Republic was founded.

On this video, you can listen to the national anthem of Laos.