Asa Singh Mastana (1926 – 1999) was a Punjabi Musician and singer, best known for lending his voice to the hit Bollywood film Heer. His well-known songs, among others "Doli Charhdiyan Marian" and "Kali teri gut", have served as templates for later Punjabi musicians.[citation needed] He was mostly paired with Surinder Kaur or Prakash Kaur for singing many old folk songs of Punjab