Watch: Kelly Clarkson and Seal Perform National Anthem at Indy 500

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The Indianapolis Motor Speedway celebrated its 100th birthday on Sunday, and Former "American Idol" winnerKelly Clarkson, Seal and David Foster kicked off the event with a moving performance of the national anthem.
The three made somewhat of an interesting (albeit compelling) coupling, with Kelly Clarkson and Seal providing vocal accompaniment to musician/ producer, David Foster on Piano.
Watch the video for a rewind of Sunday's awesome performance right here, in case you missed it!