How do you sing that high!?

How can you get that high, i can but only mouse like, by tightening my cords, i need volume , but that causes my cords to fry open due to more air, helllllllp????

Ken Tamplin:
I do it with a technique I use called open throat singing. I have a DVD series on my ken tamplin vocal academt. com web site that demonstrates how to do this.