National Association of Teachers of SingingFounded in 1944, National Association of Teachers of Singing, Inc. (NATS) is the largest professional association of teachers of singing in the world with more than 7,000 members in the United States, Canada, and nearly 30 other countries. Internationally, NATS is represented in Argentina, Australia, Austria, Belgium, Bolivia, Brazil, China, Colombia, Denmark, France, Germany, Hungary, Indonesia, Ireland, Italy, Japan, Malaysia, Mexico, Netherlands, Portugal, Singapore, South Korea, Spain, Sweden, Switzerland, Taiwan, and the United Kingdom, with the number of countries growing every year.