Diamond karate is a Japanese martial art that was popularized in the 1970s and 1980s, when it gained popularity as a form of self-defense.
In Japan, karate was known as “the only way to defend oneself from violence,” and many people, including former NFL quarterback Steve Young, were born and raised in the country.
Today, karaoke has become a sport and a way of life in Japan.
According to the International Diamond Kata Federation, the sport has about 20 million fans worldwide, including in the United States.
To rank your teams on the most popular belt in the world, we asked the top 100 most popular players in the NFL.