Gosh, there are so many that I want to recommend that I probably won't get to mention all at once but the ones that come off the top of my head are:
- Kam Sunyaa (The Promise) by Gun Napat (aka Gun the Star 6)
http://www.youtube.com/watch?v=msTaa3abKMw
from "Koo Gam 2013"
- Rak Tae Yoo Neua Garn Waylaa (True Love Exists Through Time...or something like that) by Various Artists...but my favorite is by Gun Napat
http://www.youtube.com/watch?v=8FkGFLrMFDA
from the "Jutathep Gentlemen" series
- Rak Ter Nirun (Love You Eternally) by Gun Napat
http://www.youtube.com/watch?v=A5rNQfB-3ho
from "Buang Wan Waan"
- Kahng Kahng Hua Jai (Beside the Heart) by Gun Napat
http://www.youtube.com/watch?v=VSDUi0hFRbg
from "Reuan Pae"
- Pieng Chai Kon Nee...Mai Chai Poo Wised (This Guy...isn't a Magician) by Bie Sukrit (aka Bie the Star 3)
http://www.youtube.com/watch?v=x5l4ofraqOg
from "Kaam Waylaa Haa Rak"
- Thinking of You by Bie Sukrit
http://www.youtube.com/watch?v=sFlB1d9TmlU
from "Nangsao Jamlaeng Rak"
- Plur Rak Modt Jai (Fallen For You With All My Heart) by Bie Sukrit
http://www.youtube.com/watch?v=9Sc0VYuoqkA
from "Dauk Rak Rim Taang"
- Haam Jai (Forbidding My Heart) by Noona Neungthida
http://www.youtube.com/watch?v=dzmN1ILnfuo
from "Koo Gam 2013"
- Jamloey Rak (Defendant of Love) by Punch Worakarn
http://www.youtube.com/watch?v=cxAOoku5qoQ
from "Jamloey Rak 2008"
***VIDEO CREDITS TO ORIGINAL UPLOADERS***