During a performance of "The Star-Spangled Banner" before the NHL's Toronto Maple Leafs and Nashville Predators squared off at Toronto's Air Canada Centre on Tuesday, a technical glitch caused the microphone to cut out while the singer was mid-song.

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Without missing a beat, the Toronto crowd joined in to finish singing the U.S. national anthem, an amazing, touching moment that was captured on video by the NHL and fans in attendance.

Watch the NHL's YouTube video below.

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