Whenever it's time to get on stage and perform, it's always a good idea to be as relaxed and warmed up as you can be. Alvin Fields (Drake, Whitney Houston, Ella Fitzgerald) has just the exercise for that. With this simple humming exercise, you can work on many aspects of your singing at the same time. You will warm up your voice, work on your range and relax, all while singing in a very soft tone.This voice tutorial is just one of the many online vocal lessons available at Music School Online. Learn how to sing at your convenience, any time, anywhere.