In honor of tomorrow night's Nickelodeon Kids' Choice Awards, we've put together a Flashback Friday of some of our favorite celebs' first appearances at the awards show's orange carpet!
You'll be shocked at how young stars like Miley Cyrus, Justin Bieber and Rihanna were when they made their big KCA debut! Even stars like One Direction and Ariana Grande who have made their debut in more recent years have had major style transformations since their first time at the slime-filled show.
Click through the gallery above to see 20 of our fave stars' first appearances at the Kids' Choice Awards! Which celeb's flashback photo is most shocking? Sound off in the comments section below!