This is the one of the famous version of Ahrirang. Ahrirang is folk song in South Korea but there are different version of Ahrirang in different state in South Korea. The one song that we normally know and can sing is mostly from Gyeonggi – Do. However, this version Ahrirang is from Busan. 

Link: https://www.youtube.com/watch?v=kPtTi8ougPU