Watch Kate Hudson Sing the National Anthem on 4th of July

Kate Hudson attends the Serpentine Gallery Summer Party 2015
Ian Gavan/Getty Images

Kate Hudson attends the Serpentine Gallery Summer Party at The Serpentine Gallery on July 2, 2015 in London.

Kate Hudson is proud to be an American and showed her patriotism by singing the National Anthem loudly -- and joked that she woke up her neighbors.

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The actress posted a patriotic Instagram video singing "The Star Spangled Banner" Saturday morning in celebration of the Fourth of July.

"7:30am and I'm feeling seriously patriotic! Happy 4th of July!," she posted. "#ProudAmerican #StarSpangledBanner #RedWhiteAndBlue #GearingUpForFootballSeason #MyKidsAreGoingToBeSoEmbarrassed #WokeUpTheNeighbors."

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Bedecked in floral pajama bottoms, a T-shirt and sunglasses, Hudson belted out the lyrics with a coffee cup in hand.

Watch the patriotic video below.

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