Men's Rhythmic Gymnastics

I never heard of this sport until now haha. http://www.menrg.com/
Thanks to Yooani for sharing the link on twitter.
This video, they are playing with anisong, i think... amazing performance and pretty funny *___*

EDIT: There's a drama called Tumbling that recently came out in Japan. I'm assuming its to help promote the sport XD;; But its definitely the right time for me to get interested about it since I never heard of this sport before XD