You might not be able to speak Tai, but after listening to this audition you should be able to understand what's happening.
A man woman person recently appeared on the show "Thailand's Got Talent" to strut his her their (I know, it's not grammatically correct) stuff. The song starts out innocently enough -- a high-pitched ballad meant for a woman. But it also seems the song is supposed to be a duet with a man. And that's when the big reveal happens: