 The result of Rhee's invention—martial arts ballet—became the foundation for the musical forms competitions that are now popular at many martial arts tournaments in the U.S.The new art form has also found its way to Europe and Russia.Jhoon Rhee Taekwondo uses ITF forms as its higher dan-level (Black Belt) forms

The American Taekwondo Association (ATA) was founded in 1969 in Omaha, Nebraska by Haeng Ung Lee, a former Traditional Taekwondo instructor in the South Korean military.