Tran Quang Hai uses overtones to sing "Happy Birthday To You", then he plays this tune with the Vietnamese Jew's Harp Đàn Môi . Finally he sings this beautiful song in English, French and Vietnamese .
The Vietnamese lyrics are written by myself.
Filmed by Bach Yen, in Limeil Brevannes, on February 25, 2010 (the day of my friend Jean's birthday ).
