I hope that I never grow out of finding this sort of thing funny.
The man in the "kangourou" costume is French prankster RĂ©mi Gaillard. He's famous in France for wearing national sports teams' uniforms and slipping by security to join the teams on the pitch, at victory parties, in audience with President Jacques Chirac, etc. - all for the benefit of the camera.
The influence of Jackass and the UK's Dom Joly are apparent in this video of Gaillard on a rampage dressed like a kangaroo. The song is "Kangourou Nomade" by the French ska band Nomades et Skaetera. [DailyMotion]
Note: The video includes a brief shot of a topless sun-bather. I suggest that if breasts frighten you, you should avert your eyes.
(That was just a silly joke, don't get upset :P)
Anyone speak french? I'd love to know what they were saying ;P
I laugh at a lot of things, but this was just meh...