Red Hot Song Library - Warm Ups, Book & CD by Sarah Watts. Is an amazing resource book to help teachers introduce singing that is fun, relaxed and successful. Warm ups contains songs, some with actions, for warming up the voice before each singing session. Play through the book or listen to the CD, which iincludes both practice and performance tracks, and you'll hear just why so many educational professionals embrace Sarah Watt's music the such enthusiasm. There are 5 more books in this series.