Have you heard of FaceApp? The photo-editing app uses facial recognition software to create photo-realistic depictions of what you might look like in the future, in the past, or as another gender — and it's currently taking the internet by storm. If you're obsessed with Snapchat filters (and who isn't?), this is for you. J-14 ran our favorite celebrity guys through the app, and the results are mesmerizing or a bit bizarre, depending on your take.

Have you ever wondered what Harry Styles will look like as an old man? How about 13 Reasons Why star Dylan Minnette or Riverdale actor Cole Sprouse? Well, you're about to find out. It kind of messes with your mind a little bit! The end result is a captivating series of photos that will make you do a double-take.

Scroll through the gallery to see celebrity guys' FaceApp transformations. Which one shocked you the most?