How can I sing on a pitch that is not wavy?

I've made lots of songs. I noticed my voice's pitch is wavy. Like sliding and all that crap. I would like to know some excersises I can do to help my pitch. Thanks. The link is: http://www.youtube.com/watch?v=TUd2newdTFM

S S2009-10-10T16:17:58Z

Favorite Answer

Dear

Isuggest you check


http://strange-triangle.blogspot.com

http://m-m-f-y-w.blogspot.com/

I hope that resolves your problem