Sing from your belly and not from your throat. The concept of singing from your belly refers to using your abdominal muscles to support your breathing and your vocal tone. When you breathe to sing, breathe deeply and allow your chest and abdomen to increase in size. As you breathe out and sing, contract your abdominal muscles and imagine your tone flowing up from your belly. If you sing without this type of support, your tone will most likely sound weak and squeaky.
Position your body in a manner that allows you to use your abdominal muscles as you sing. If you're slumped over with poor posture, you can't use these muscles efficiently. Stand or sit with your spine straight and your head facing forward.
Maximize the area in which your singing tones vibrate. Do this by dropping your jaw and tilting your chin inward as you sing. This creates a richer, fuller sound and helps you to extend your vocal range.
Relax the muscles in your face, throat and neck when you are singing. Tense muscles will cause your tone to sound squeaky.
Hydrate your body. Drink at least eight 8-oz. glasses of water per day. Don't smoke or drink large amounts of beverages containing caffeine or alcohol. These simple measures will help to keep your vocal chords moist. Without moisture, your voice will sound squeaky, and your throat may hurt when you sing.