It's called rhythmic gymnastics and usually involves a ball or some ribbon or maybe a bunch of those bowling pins that people use for juggling, and one very flexible young lady.
In the sideshows, we call these people contortionists.
In the world of sports, they're Olympic athletes - and believe it or not, this isn't even the weirdest sport ever played in the Olympic Games.
In one Olympics, people got medals for killing birds. In another, it was for swinging clubs around.
Even tug-of-war was once an Olympic sport.
So what are the weirdest Games ever player? Find out in my new gallery: Weird Olympic Sports.