Sha Lang approached music during his military conscription, when he became trumpeter in the army band.

[1] After being discharged, he started a rock band with two friends, and began performing in clubs and hotels.

[1][2] He had his breakout in 1971, when he got a hit with "Love Is an Elusive Wind (風從哪裡來)", the theme song of the film with the same name, and successfully specialized in romantic ballads in Mandarin.

[1][2] In 1987, Vansalrang went to China to take part in the CCTV Spring Festival, but because of the strict cross-strait policy of that time he was banned from returning to Taiwan; the ban was eventually lifted 8 years later, but at that point his wife and children had moved to the US and had lost contact with him.

[2] Starting from a brain injury in 1997 which caused him a mental degradation to the level of infants,[3] Vansalrang suffered massive health issues, including several strokes, one of them in 2015 paralyzing half of his body and forcing him to be fed through nasogastric intubation.