Stars like H.E.R. and Brandi Carlile channeled the ’70s at the iHeartRadio Awards, while others like LL Cool J showed up in sweats! See the photos here.
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Doja Cat at the iHeartRadio Music Awards
![Doja Cat at the iHeartRadio Music Awards](https://hollywoodlife.com/wp-content/uploads/2021/05/doja-cat-shutterstock-gal.jpg?w=680)
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Doja Cat
![Doja Cat](https://hollywoodlife.com/wp-content/uploads/2021/05/doja-cat-iheartradio-music-awards-2021.jpg?w=680)
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Megan Fox & Machine Gun Kelly
![Megan Fox & Machine Gun Kelly](https://hollywoodlife.com/wp-content/uploads/2021/05/machine-gun-kelly-megan-fox-shutterstock.jpg?w=680)
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Demi Lovato
![Demi Lovato](https://hollywoodlife.com/wp-content/uploads/2021/05/demi-lovato-shutterstock-gal.jpg?w=680)
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Megan Thee Stallion
![Megan Thee Stallion](https://hollywoodlife.com/wp-content/uploads/2021/05/megan-thee-stallion-shutterstock-gal.jpg?w=680)
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Lil Nas X
![Lil Nas X](https://hollywoodlife.com/wp-content/uploads/2021/05/lil-nas-x-shutterstock-gal.jpg?w=680)
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Charli D’Amelio
![Charli D’Amelio](https://hollywoodlife.com/wp-content/uploads/2021/05/Charli-DAmelio-iHeartRadio-Music-Awards-.jpg?w=680)
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H.E.R.
![H.E.R.](https://hollywoodlife.com/wp-content/uploads/2021/05/H.E.R.-iHeartRadio-Music-Awards-1-1.jpg?w=680)
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Usher
![Usher](https://hollywoodlife.com/wp-content/uploads/2021/05/usher-shutterstock-gal.jpg?w=680)
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LL Cool J
![LL Cool J](https://hollywoodlife.com/wp-content/uploads/2021/05/ll-cool-j-shutterstock-gal.jpg?w=680)
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Nikki Glaser & Gleb Savchenko
![Nikki Glaser & Gleb Savchenko](https://hollywoodlife.com/wp-content/uploads/2021/05/nikkie-glaser-shutterstock-gal.jpg?w=680)
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Robin Thicke & son Julian
![Robin Thicke & son Julian](https://hollywoodlife.com/wp-content/uploads/2021/05/robin-thicke-shutterstock-gal.jpg?w=680)
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Brandi Carlile
![Brandi Carlile](https://hollywoodlife.com/wp-content/uploads/2021/05/brandi-carlile-shutterstock-gal.jpg?w=680)
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French Montana
![French Montana](https://hollywoodlife.com/wp-content/uploads/2021/05/french-montana-shutterstock-gal.jpg?w=680)
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Gabby Barrett
![Gabby Barrett](https://hollywoodlife.com/wp-content/uploads/2021/05/gabby-barrett-shutterstock-gal.jpg?w=680)
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Elton John & David Furnish
![Elton John & David Furnish](https://hollywoodlife.com/wp-content/uploads/2021/05/elton-john-shutterstock-gal.jpg?w=680)
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Nelly
![Nelly](https://hollywoodlife.com/wp-content/uploads/2021/05/nelly-shutterstock-gal.jpg?w=680)