I was unaware that Chuck Norris had founded his own art, Chun Kuk Do, some years ago. Apparently it combines elements of Tang Soo Do (principally), Japanese karate, judo, and BJJ among others. There was an article on Mr. Norris in the current (April) Black Belt that mentioned it.
The name of Chun Kuk Do identifies the unified set of philosophies, principles, and techniques that Mr. Chuck Norris has molded into the greatest, most complete martial arts system in the world today.