Kate Hudson Masters “The Star Spangled Banner” on Fourth of July: See How Other Stars Are Celebrating

Forget her "Tiny Dancer" routine — Kate Hudson can really sing! The Deepwater Horizon star didn't care who was listening when she belted out "The Star Spangled Banner" to celebrate the holiday on Saturday, July 4.

PHOTOS: Stars in patriotic bikinis

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"7:30am and I'm feeling seriously patriotic! Happy 4th of July!" Hudson, 36, captioned an Instagram video. "#ProudAmerican #StarSpangledBanner #RedWhiteAndBlue #GearingUpForFootballSeason."

She added: "#MyKidsAreGoingToBeSoEmbarrassed #WokeUpTheNeighbors."

PHOTOS: Stars in the kitchen

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Still wearing her pajamas, the Almost Famous actress wore red sunglasses indoors and held a cup of coffee during her funny performance.

Caitlyn Jenner, meanwhile, shared a very meaningful message. "Happy 4th of July! Proud to be an American…where at least I am free to be me," she wrote.

PHOTOS: Celebrity parties

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Other stars celebrating the Fourth of July include Diane Kruger, Jessica Alba, Nick Jonas, and more. Former Secretary of State Condoleezza Rice even posted a video of her playing piano to "Amazing Grace." See more below:

Happy 4th of July! Proud to be an American … where at least I am free to be me.

A photo posted by Caitlyn Jenner (@caitlynjenner) on Jul 4, 2015 at 11:30am PDT

Yep…just whipped that beauty up with @thriftthrill ?? Happy 4th everybody

A photo posted by Diane Kruger (@dianekrugerperso) on Jul 4, 2015 at 9:23am PDT

Mornin ??????????

A photo posted by Jessica Alba (@jessicaalba) on Jul 4, 2015 at 9:16am PDT

Happy Independence Day. Love and Rockets. Narrowsburg, NY

A photo posted by Mark Ruffalo (@markruffalo) on Jul 4, 2015 at 8:13am PDT

Happy fourth people

A photo posted by @nickjonas on Jul 4, 2015 at 7:31am PDT

Homemade brunch … the #American way! #July4th ????????

A photo posted by Andi Dorfman (@andi_dorfman) on Jul 4, 2015 at 10:02am PDT

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