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After being handed a mock-up of McDonald's Island, featuring chicken nuggets dancing around a skirted Big Mac under french fry palm trees, Johnson rattled off a rapid-fire series of self-referential jokes about the show's history.

It attracted reaction on social media with one user posting a mock-up of word game Countdown.

It happens underwater in a giant pool, complete with a spacesuit and a mock-up of the space station, she explained.

The space shuttle Challenger was built there and the city is proudly restoring its original mock-up.

I had him learn all the choreography and rehearse with Ariana on our plywood mock-up set so that the camera could be completely choreographed too.