Canada

This is the best summary I could come up with:

If you go to the Wikipedia page that lists Grey Cup halftime shows, you'll find familiar names such as Shania Twain, the Guess Who and the Tragically Hip.

With no Wikipedia bio as a starting point, he began digging around online for information and found little except a few references to the Parablegics being an obscure act that performed at the 1999 Grey Cup.

In an age when it seems like every nugget of information, no matter how arcane, is easily available through a Google search, the fact that details about the halftime performance at one of Canada's most-watched events remain elusive bothers him and a small group of users on the CFL Reddit forum.

He watched the CBC's broadcast of the 1999 Grey Cup and found its halftime segment featured an in-studio panel that included analysts Mike (Pinball) Clemons and Glen Suitor and did not show the performance on the field.

Stachel says he's considered that Wikipedia could be the problem, with someone adding a name of a non-existent performer as a hoax and subsequent media reports citing information from the site without looking for further attribution.

Given the lack of  details, theories about what took place in between halves at the 1999 Grey Cup (which saw the Hamilton Tiger-Cats defeat the Calgary Stampeders 32-21, for what it's worth) abound.

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