i also got confused when i heard this song from Kantipur FM (RJ was some kuhirini in that English song program at Kathmandu FM, she left the FM later) several times some 7-8 years ago. later i searched for it and found that it was originally an american folk song and there are different version and remix of this song.  

Where did you come from, where did you go? where did you come from, "Cotton eye Joe"? cotton eye Joe sounds like catmandu.