The world as we know it has forever changed.

Because of Harry Styles.

On Friday, May 6, Styles posted the following photo to Instagram, simply captioned, "Whoops. #Littleprincesstrust":

Naturally, social media responded as if it were World War III. Twitter transformed into a battleground. And to say that shots (or Tweets) were fired would be an understatement as #OhNoHarrysHair quickly became the subject of six trending topics on the site.

Official photos of the former boy band member rocking his new 'do have yet to be released.

But this isn't just any haircut. Duh.

Styles didn't just chop off nine inches of his luscious, perfectly perfect curls for the hell of it. Instead, he donated those long locks to Little Princess Trust, a cancer charity that provides wigs to kids suffering from hair loss.

According to a 2013 City of Hope article, around 100,000 children under the age of 15 die from cancer every year.

Serious issues aside, whether you're mourning the end of this glorious era or relieved that his hair is (finally) shorter than yours, I think we can all agree that Harry Styles is one of the most beautiful people, inside and out.

Here are our favorite "Harry Styles hairstyles" moments:

1. The windswept look

Blowout and conditioning goals.

2. Styled Styles

3. #Flawless

"The way that you flip your hair gets me overwhelmed..."

4. Easy. Breezy. Beautiful.

5. Untamed and Uncut

Wild and free in its natural habitat. Truly majestic.

6. The wet mop...

7. ...And the feather duster

A man of many Styles.

8. ASDFJKL

I mean, come on. Who could ever forget bandana Harry?

9. Styling and Slings

The hair product makes up for whatever fiasco happened here.

10. The dodgeball 'do

Patches O'Houlihan would be so proud.

11. #GoneButNeverForgotten

To learn more about Little Princess Trust, visit www.littleprincesses.org.uk.