Wasgij Original #30: Strictly Can't Dance!

Find out what it is that the people in the picture are seeing.  Use your imagination as well as your curiosity to find out what's happening in the Wasgij Original Puzzle.  Only the puzzle holds the answer...

Strictly Can’t Dance! Is the hilariously funny 1,000 piece jigsaw puzzle that shows everyone’s favourite talent show ‘Vaguely Gone Prancing’! The image printed on the front of the box depicts a talent show taking place. However something has caught the eye of some people, while everyone is trying to enjoy themselves and watch the entertainment. What could be happening to get this surprised reaction from everyone? Try to imagine you are the judge falling out his chair on the right and piece together what he can see.

1000 Pieces
Finished size: Approx. 68 x 49 cm / 27 in x 20 in
Made by: Jumbo International