If you need a refresher on what your favorite band looked like a decade ago, you're in for a real treat.

Read more: QUIZ: Can you guess the year based on the band photo?

We gathered up the oldest photos we could find from the past decade—give or take a year or two on some—and present to you the most epic of side-by-sides.

From fashion, hair and lineup changes, a lot has changed with these artists—let us know if you think for better or for worse in the comments.

Fall Out Boy

We low-key miss Pete's swoopy hair.

We The Kings

Boys and girls, this is what happens when you eat your Wheaties.

The Academy Is…

William Beckett has since cut his signature locks and we weep.

Paramore

What's that saying? If you love something let it go? Thankfully, Zac Farro found his way home.

Panic! At The Disco

[Photo credit: Meg Meyer]

Brendon Urie's wardrobe is a tad more high-end than in yesteryears but we'd start a petition any day to bring them back.

Mayday Parade

We're still wondering what happened to that chicken. We hope it has lived a long, healthy life.