In the days of Thailand They say "san birthday." And in Thailand, people will sing sing in English language are also Thailand's birthday song to make merit for Thailand people.
On the birthday of Thailand I say happy, "Sants Birthday" were to sing to sing in English in Thailand is also a version of the song in Thailand Thailand's birthday will go unappreciated.
On the birthday of people, he will say "Happy Birthday to you happy". And people sing singing in English is also the Thai version of the song in a birthday Thai people to donate