Here are a few easy tips from Thehowtosing.com to help you sing some of those high notes.
1. Practice, practice, practice keeping the back of your throat open when you sing. Always inhaling so it feels like you are beginning to yawn sets you up for good singing. Another way to describe this method of inhalation is “taking a breath of astonishment.” You’re seeing the Grand Canyon for the first time, and your astonishment causes you to breathe with a feeling of a silent “ah.” Acquire this habit through practice and awareness of its great value.
2. Understand that the very high notes must be thinner than the low ones. If you are trying to sing up high by pushing too much air and making a big fat sound, you are limiting your high range and damaging your vocal cords. Lighten up up there. This doesn’t mean use less energy, only less volume and push. The high notes on the piano are much thinner than the very low ones, but they are just as powerful.
Listen to the best singers and you will hear them do this.
3. Keep your head and jaw loose and relaxed. Your high range is directly related to tension (or lack of it) in these areas. While you are singing, move your head gently from side to side occasionally to release built up tension. Keep your shoulders relaxed. Be aware of when these areas are filling with tension, and release it.
4. Use an “h” at the beginning of a very high note. Instead of singing the word “I”, sing “hi” using a very soft ‘h’. This opens your throat and helps a lot to hit the note. This “h” sound is not heard by the listener unless you make it way too big and loud.
5. Unless you are singing very softly, pull back away from the mic when you go for those big high notes. When you hear yourself blasting through the speakers you probably will try to pull back on energy to make it sound better. It works much better to keep your energy high while pulling back from the mic. Practice good microphone techniques.
6. Keep your rib cage expanded, thus “supporting” your high notes. There are other support techniques for singing, but this one will help a lot.
7. When you are singing up very high, don’t try too hard to be understood. Precisely pronounced words can and probably will cause your throat to close, making you have to strain up there.