If you merely logged on to social media today, you could be forgiven for wondering if you'd just been through some kind of time warp.

Over the past few hours the Internet has been having fun with the #FaceAppChallenge, in which they use the new FaceApp to transform photos of themselves into hypothetical elderly versions.

It's really trippy — especially when you see it done on celebs whose faces you know OH SO WELL.

Take for instance the Jonas Brothers . We've watched the trio grow up, so find what they'll look like when they grow old is … disturbing.

Whatever, Nick could still get it.

The FaceApp tech turned this pic πŸ˜› TAGEND

( c) Jonas Bros/ Instagram

into this πŸ˜› TAGEND

( c) Jonas Bros/ Instagram

Yeah. Wow.

If only “were having” some style to look at the Jonas Brother YOUNG, too.

Oh wait LOLz! We do!

( c) Pat Dishinger/ WENN

Awwww! So cute!

The JoBros weren't the only celebs who took part in the challenge.

Here's Drake , appearing nothing like his dad…

Kind of a distinguished salt and pepper look. Into it.( c) Drake/ Instagram

The image apparently left Drake speechless, as he instead flung the gig to his IG followers πŸ˜› TAGEND

” Best caption wins ovo tickets”

Ha! So far the most liked comment is someone simply quipping, “OLDVOLD.”

Cardi B must have disliked hers, because she deleted it!

( c) Cardi B/ Instagram

Sam Smith will apparently be a dignified old queen πŸ˜› TAGEND

( c) Sam Smith/ Instagram

Ludacris shared a pic with his Fast and Furious costar Tyrese , joking πŸ˜› TAGEND

Fast& Furious 50 and we still haven’t stopped at a gas station. Or for Diapers.” ( c) Ludacris/ Instagram

Lil Nas X was his typically meme-fluent ego, writing πŸ˜› TAGEND

” feeling cute might delete later”

Ha!

( c) Lil Nas X/ Instagram

Gordon Ramsay disclosed his” MasterChef Season 50″ appear πŸ˜› TAGEND

Me doing a demo on #MasterChef Season 50…. ( c) Gordon Ramsay/ Instagram

David Guetta posted πŸ˜› TAGEND

Back from my show in ibiza i ve been a dj for 60 years and I still love it. July 15 2040( c) David Guetta/ Instagram

Piers Morgan joked he apparently needs” a break “:

I need a violate.( c) Wharves Morgan/ Instagram

And then there's us, Perez Hilton , who really put the tech to the test with a shirtless pic…

I was done dirty !!! #AgeChallenge( c) Perez Hilton/ Instagram

But maybe not as much as Courtney Stodden , who showed almost the full Monty!

( c) Courtney Stodden/ Twitter

That … is something…

Funny enough, one celeb isn't so stoked about this whole thing.

Nick Jonas posted his own solo version, one he was less happy with we guess.

OMJ. Old man Jonas. ( c) Nick Jonas/ Twitter

Yeah, life was tougher on this Nick … But that's not what was upsetting him.

No, the Jealous singer got pretty tin foil hat about the whole thing, reminding everyone we all just did the ten year challenge — perhaps giving the FaceApp folks all the data they needed for free…

https :// platform.twitter.com/ widgets.js

Ha!

And he might not be wrong to be mistrustful of the app — and not just the source of their algorithm either.

Some users are also noticing there's a disturbing sum of fine print in the terms of service.

The exact wording is…

” You grant FaceApp a perpetual, irrevocable , nonexclusive, royalty-free, worldwide, fully-paid, transferable sub-licensable license to use, reproduction, modify, accommodate, publish, translate, create derivative works from, distribute, publicly perform and showing your User Content and any name, username or likeness provided in connection with your User Content in all media formats and channels now known or later developed, without compensation to you .”

They only OWN the rights to your likeness? And the likenesses of any friend's pics you upload? Whoa, that's severe.

And this ain't Google or Apple we're talking about. FaceApp is made by a company called Wireless Lab , based in St. Petersburg, Russia.

A Russian tech company with access to all of our personal data? What could go wrong ??

Smug

[ Image via Jonas Brother/ Instagram .]

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