Basically anyone who can hold their own weight on a pull up bar can do this. Meaning everyone should be able to do this with ease. This is not  talent. Look at little girls who do the spinny thing on the bars at school. They do it for fun. They are not considered strong or athletic, just kids doing spins. Sorry, I forgot the name of these, but you hook one leg over the bar and spin forward or backward, you can also do the more dangerous one where you hook both legs and swing backward in circles.