Before tonight’s game between the Ottawa Senators and Pittsburgh Penguins, as is customary, the national anthems of both the United States and Canada were sung. However, this normally reverent pre-game event turned into a laugh-fest, likely because of the high-pitched tones being belted out by the opera singer who was performing the anthems. Most notably, All-Stars Sidney Crosby and Erik Karlsson can be seen giggling away. Check it out:

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