Back in September, Twitter unveiled a brand new look from user profiles across all platforms. The new profiles included a large header photo that mimicked Facebook’s giant Timeline photo, and housed the users’ profile pic inside it.

Today, Twitter says that no matter what, all users will have the new profile look by Wednesday, December 12th. And since you’re going to have it, you may as well make it look pretty:

“On December 12, we’re rolling this out to all users: you’ll automatically get this new version of the profile on twitter.com. If you don’t upload a header photo by then, you (and everyone else) will only see a default grey image on your page. That’s not fun!” says Twitter.

While the grey space surrounding the profile pic isn’t quite as atrocious as the default “egg” profile pic for lazy users, it’s pretty bad. Uploading a header photo lets you better express yourself on the network and honestly makes you look like you give a damn about your social media profile. Anyone who relies on social media for contacts (as more and more people are nowadays) should know that looking like you care is half to battle.

Back in November, Twitter published an animated video detailing how and why users should update their Twitter profiles. Today, they’re publicizing that video again: