That's what they call their band.  Broken Smile.  If you want to know why they call their band like that, ask their lead singer Weng.  But before that you have to watch and listen to their song "Wanting". I like the song, and I'm sure you will. Let me know what you think then.

UPDATE: Please visit their youtube website at : http://www.youtube.com/brokensmileband . They have a MySpace account too, there you'd see a lot of information about the band and their music.