The first time I ever saw tae kwon do was when I took my son, Logan, to his first class. While many of the students were young enough to be my kids, there were adults in the class, too -- adults I ...

Its author, Billy Blanks, developed the program in the 1970s, combining elements of Tae Kwon Do, boxing, and dance. Only later did it catch on through videos, infomercials, and licensed instructors.