Molson Canadian Beer Fridge Will Open Only for the Canadian National Anthem

— -- Happy Canada Day!

In honor of the occasion, the Molson Canadian Beer Company built a custom fridge filled with the Canadian beer.

Watch: Celebrities Celebrate Canada Day

The catch?

To open the fridge, eager drinkers must sing the Canadian national anthem, 'O Canada', correctly and in its entirety.

Watch as Molson Canadian fans try their best to open the beer fridge. Sing along if you've always wanted to sing the Canadian national anthem but have never had the opportunity. It's Canada Day!