Source: Youtube Christina Aguilera sings the National Anthem at Superbowl 2011

For most of the people watching last night, the controversy involved Christina Aguilera messing up the words to the National Anthem.

But to those who actually bet on it, it was a much bigger deal.

Some bettors thought that they should immediately get their money back because the prop bet relies on the singer to actually sing the right words.

Others had a problem with the timing.

The over/under bet settling at 1 minute and 54 seconds from time Aguilera opened her mouth to the time she finish. Bodog’s official time was 1:53:7, meaning that those who took the under won. But bettors on Twitter were telling me that Bookmaker.com was paying out for the over.

Sportsbook.com spokesman Mike Pierce told CNBC that it had timed out Aguilera’s anthem at both 1:53 and 1:54 and was going to make a determination sometime on Monday.

It’s unclear what the discrepancy seems to be, but it might be the fact that Aguilera added the word “oh” after she sang the word “Brave.”

Update: Sportsbook.com's Mike Pierce said the site is giving money to both sides of the bet. It's the first time in the site's history that they've ever done that on an over/under bet.

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