This is one of my favourite songs. Because of this movie is well-known in so many countries, especially in Asia, and of course its original soundtrack titled 'Some Day' too, so I tried to translate the lyrics to english as you can see at the bottom of the video. Hope you enjoy!

'A little thing called LOVE' original soundtrack
เพลงประกอบภาพยนตร์ สิ่งเล็กๆที่เรียกว่ารัก