In Xtreme Vocals, resident pop princess Harmony & rock rogue Klash guide you through a 10-lesson programme, covering everything from posture & how to project your voice to using vibrato & mastering rock techniques! With a free audio CD for you to sing along to, profiles of 10 of the greatest vocalists of all time & easy-to-follow guidelines that will help you to sing just like them, Xtreme Vocals arms you with all you need to be able to take to the stage & wow your audience in no time.