[yamogi]

i believe there are no FAKE vibrato, singers move their jaw when using vibrato is just a HIBBIT and increase the effect of vibrato. Many of you miss one thing, there are TWO kinds of vibrato used nowadays by singers.

one uses breath to do which is powerful and deeper, just like opera singer, choir and the way that your school music teacher sing: the other one is using mouth and throat to trap/release the note which is less powerful but MUCH easier,and it is a TRUE vibrato which singing teacher taught me and she said if you are going to sing pop song , the second one is the most suitable while the first one will make the song become LESS emotional.

The one which ayu used in heatplace is the first one, in other song which in greatful day is the second one.

what you guys said has only concentrated on the first kind of vibrato, in fact there are MORE than one kind of vibrato.