A common vocal obstacle for many singers is detrimental tension, its occurrence in the upper body in particular, and how to alleviate it. Preconceived ideas of singing, poor habits of posture, or uninformed exposure and performance experience in contemporary vocal styles, could contribute to various tension problems for singers. This document examines the pedagogical research of several renowned voice teachers, showing how addressing excessive tension through voice teaching has changed in the past two centuries. In researching the views of these voice teachers, a compendium of pedagogical strategies and vocal exercises that these individuals have identified to help remedy unwanted tension in the upper body has been compiled. Research on physical activities, from Alexander Technique and yoga to dance training and Laryngeal Manipulation Therapy (LMT) will be included. These forms of activities are becoming common among voice teachers and students when working with alleviating tension related issues. This document focuses on the following areas: jaw, tongue, neck, shoulders, chest, and intrinsic and extrinsic muscles of the larynx. It is the author's hope that the research and resulting compilation of historical and modern techniques designed to reduce tension will serve as a useful tool for voice teachers and performers alike.