2013 Teen Choice Awards Fashion: Best & Worst Dressed

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Demi Lovato performed with Nick Jonas.

Harry Styles Twerked.

And Lea Michele brought a tear to our eyes.

But, as is so often the case when it comes to these events, the 2013 Teen Choice Awards were really all about fashion. Who wore the most daring outfit? Who committed the greatest faux pas?

Scroll down now for the best and worst red carpet looks from the ceremony...

Selena Gomez at 2013 Teen Choice Awards
Ian Somerhalder at 2013 Teen Choice Awards
Janel Parrish at the Teen Choice Awards
Katie Cassidy at the Teen Choice Awards
Lucy Hale at the Teen Choice Awards
Lily Collins at the Teen Choice Awards
Jordin Sparks at the Teen Choice Awards
JWOWW at Teen Choice Awards
Nina Dobrev Cleavage Pic
Lily Collins at the Teen Choice Awards
Demi Lovato at 2013 Teen Choice Awards
Shay Mitchell at the Teen Choice Awards
Ian Somerhalder at 2013 Teen Choice Awards
Erin Andrews at Teen Choice Awards
Naya Rivera at the Teen Choice Awards
Pregnant Danielle Jonas
Kerry Washington at Teen Choice Awards
Selena Gomez at 2013 Teen Choice Awards
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