Sony's strange viral video blog marketing about the mysterious Sony Rolly audio player has been cut short by a leaked video on Engadget.

The video shows a guy performing weird dance moves that 'communicate' with the Rolly player. It looks like the Sony Rolly can literally roll around to the beats of the music.
Colorful light effects and flapping things on the side complete the weirdest audio player I have seen so far.
The supposedly viral Sony Rolly video blog is also just available in Japanese. The videos published there so far do not show Rolly.
See the Rolly video on Engadget.