Willie Nelson may be approaching 81, but he isn’t letting his age stop him from physical fitness. Nelson will soon receive his 5th Degree Black Belt in the art of Gong Kwon Yu Sul, a modern Korean martial arts system.

Willie has been practicing martial arts most of his life. He says it started in Nashville, when he began studying kung fu as a young songwriter. In the past 20 years, he has been training in the art of Tae Kwon Do and Gong Kwon Yu Sul. Willie says it’s the perfect thing to practice while spending time on his tour bus.

Nelson will receive his 5th degree black belt on April 28 in Austin, Texas. Grand Master Sam Um will be promoting Nelson at his studio, Master Martial Arts, and it will be a cool way to celebrate Willie’s birthday early. Nelson turns 81 just two days later.