No, your computer isn't upside down. That's dancer/choreographer Mourad Merzouki at work. When Merzouki was a boy, he liked to box, and he liked to dance. He explains the connection between boxing and his choreography in an article for TimeOut Hong Kong:
When I practise boxing, itâs exactly the same feeling when I dance. Thereâs so much similarity â in rhythm, the rapport of the body, in the movement.
The article goes on to talk about how he's combined both activities in a new hip-hop ballet Boxe Boxe, incorporating street choreography set to music by Ravel, Schubert and Gorecki and performed live by an onstage string quartet. Read More: French hip hop troupe brings classical music into the boxing ring (TimeOut Hong Kong)