We're so excited for this year's Teen Choice Awards! While this year's show is going to be honoring tons of new breakout stars and first-time nominees, a lot of your favorite stars like Selena Gomez, Demi Lovato, Ariana Grande, and Taylor Swift have been attending the show and showing off fierce red carpet fashions for years now.
In honor of the awards show coming up this weekend, we put together a fun Flashback Friday edition of all your fave nominees' TCAs red carpet debuts! We can't believe how much some celebs' styles have changed!
Click through the gallery above to see what your fave stars looked like at their first time on the TCAs red carpet. Whose style do you think has changed the most? Tell us what you think below, and make sure to watch this year's show on August 10 at 8/7c on Fox!