Whistle Voice. Whistle Tones. Whistle Register. Whatever you might call it, it’s popular! And singers desperately want to learn how to do it! In the final part of the Vocal Register World Tour, Justin Stoney of New York Vocal Coaching reveals the secret to singing Whistle notes. You don’t have to be Mariah Carey. You can just be yourself. Enjoy Voice Lessons To The World!