A nasally singer can be unpleasant to listen to. Most singers who sing through  their nose do not even realize that they have this problem. If you want to learn how to stop singing through nose, here is one trick that you can use. People sing through there nose when they do not open up their mouths wide enough. They are pushing to much air into their mouths, and some of it spills over and escapes through their noses. To stop this, you have to learn how to lower your lower palette. This is the back area of your tongue, and can sometimes get in the way of proper breathing while you sing.