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NBC Insider The Kelly Clarkson Show

11 Times Kelly Clarkson's Voice Was Not of This Planet

Clarkson is simply a vocal legend. 

By Jessica White
Kelly Clarkson performing onstage in a sparkly black dress

Where would the world be without Queen Kelly Clarkson?

How to Watch

Check your local listings for The Kelly Clarkson Show.

With massive hits like "Since U Been Gone" and "Stronger," there's no denying her powerhouse talent. In fact, you could say Kelly Clarkson is so talented, her voice is not of this Earth. Here are 11 performances that prove this. 

Kelly Clarkson covers "Blue Bayou" by Linda Ronstadt

The moment her voice becomes not of this planet: 1:20

Despite the song's '70s-era release, Clarkson delivers a performance that modernizes and commemorates the original track all at once.

Kelly Clarkson covers "Fake Plastic Trees" by Radiohead

The moment her voice becomes not of this planet: 0:50

For a songstress known for belting, Radiohead's sonic sound may not seem like a natural choice for Clarkson. But make no mistake: Her performance of "Fake Plastic Trees" is one for the history books.  

Kelly Clarkson and Ann Wilson perform a duet of "Almost Paradise" 

The moment her voice becomes not of this planet: 1:15

Now and then, The Kelly Clarkson Show fans get the honor of seeing Clarkson perform with a special guest. Clarkson had the audience mesmerized with her duet of the Footloose anthem "Almost Paradise" with Clarkson's band Y'all and rock-and-roll icon Ann Wilson. 

Jennifer Hudson and Kelly Clarkson perform "O Holy Night"

The moment her voice becomes not of this planet: 2:05

In 2020, former Voice Coaches Jennifer Hudson and Kelly Clarkson performed a tear-jerking performance of "O Holy Night" for the Voice Holiday Celebration. Both women are known for their powerful belts, so you can bet this Voice performance brought forth the goosebumps. 

Kelly Clarkson covers "River" by Joni Mitchell

The moment her voice becomes not of this planet: 1:25

Clarkson gave Joni Mitchell's "River" a breath of fresh air with just a few melodic tweaks and changes. Whether she has chosen an old song or a new track, Clarkson will knock your socks off.

Kelly Clarkson covers "Womanizer" by Britney Spears

The moment her voice becomes not of this planet: 1:10

One of Clarkson's most iconic Kellyoke performances ever was when she performed a cover of "Womanizer" by Britney Spears. Clarkson had the entire crowd on their feet with every line. Needless to say, if Clarkson ever wants to cover Spears again, no one will be complaining. 

Kelly Clarkson and her fellow Voice Coaches deliver a jaw-dropping mash-up

The moment her voice becomes not of this planet: 1:35

Season 21 of The Voice was thrilling, partially because of the lineup of talented Coaches who opened the season with a fantastic mash-up of Aretha Franklin's "Respect" and Sam & Dave's "Hold On, I'm Coming." The performance wasn't the first time Clarkson tackled a Franklin track. Clarkson also nailed "Respect" during her American Idol run! 

Kelly Clarkson covers "Careless Whisper" by George Michael

The moment her voice becomes not of this planet: 1:00

Everyone loves a silky saxophone song, and none compare to George Michael's "Careless Whisper." Clarkson might have said that she'd never dance again through the lyrics, but her audiences can't agree. 

Kelly Clarkson covers "I'm Still Standing" by Elton John

The moment her voice becomes not of this planet: 1:20

Elton John's songs never fail to get the crowd pumped, especially when Clarkson is holding the mic. Prepare to be knocked off your feet with Clarkson and her band Y'all's performance of "I'm Still Standing" by the Rocketman himself. 

Kelly Clarkson covers "Leave the Door Open" by Silk Sonic

The moment her voice becomes not of this planet: 1:15

Bruno Mars and Silk Sonic are known for their dreamy vocals, making "Leave the Door Open" a perfect track for a Kellyoke cover. 

Kelly Clarkson's cover of "Happier Than Ever" by Billie Eilish 

The moment her voice becomes not of this planet: All of it, but especially 1:10

The Kellyoke cover that has received the most viral attention is, hands, down Billie Eilish's "Happier Than Ever." The original track is impressive on its own, make no mistake, but Clarkson's take on the song is simply show-stopping. It's no secret as to why the cover made its way to Clarkson's Kellyoke EP.

Watch The Kelly Clarkson Show weekdays on NBC.