An Instagram account collected photographs of celebrities after they had undergone a "gender-swap" via the Faceapp and the results have been astounding.

Keep scrolling to see some of the best ones.

1. Elvis Presley.

He's even got that iconic smouldering look as a woman.

2. Shawn Mendes.

What a jawline!

3. Marylin Monroe.

Okay, but how good looking is Marylin Monroe as a guy?

4. Celine Dion.

For some reason, this works.

5. Adam DeVine.

This one looks so real, it's almost scary.

6. Colby Brock.

Even Instagram influencers have got in on the trend.

7. Justin Timberlake.

Oh, Justin... He kind of looks like a supply teacher that none of the kids take seriously.

8. Christian Bale.

Why does Christian Bale look like Courteney Cox before her botox?

9. Noah Centineo.

The front fringe is so 2011.

10. Charlie Puth.

He kind of looks like he belongs in a Twilight movie.

11. Angelina Jolie.

I'm attracted to both Angelinas.

12. Harry Styles.

Harry Styles actually looks like a 5-year-old child as the opposite gender.

13. Scarlett Johanson.

Why does she look like the visual representation of every boy from California?

14. PewDiePie.

Wait, the female version of himself actually looks like his girlfriend...

15. Ryan Reynolds.

A female Deadpool film, guys? I'm totally living for it.

16. Selena Gomez.

Oh no hunny, what have they done to you?

17. Nick Robinson.

Nick Robinson will always have a babyface.

18. JC Caylan.

This YouTuber looks quite good as a woman...

19. Michael B Jordan.

You can't go wrong with Michael B Jordan, can you?

20. Dan Howell.

Oh, Dan. He kind of looks like the nosey neighbor.

21. Zoey Deutch.

Wow. Just wow.

22. Ethan Dolan.

Lucy Hale, is that you?

23. Tana Mongeau.

Is it just me or does she look like a 2013 version of Justin Bieber?

24. Niall Horan.

Niall Horan is the poster boy for always looking cute.

25. Bella Thorne.

She makes it work. Wow.

26. Jake T Austin.

The former Wizards Of Waverly Place star could definitely be a model as both these genders.

27. Gordon Ramsey.

He actually looks better as a woman.

28. Lorde.

Why does this work so well?

29. Jake Paul.

He's got great hair in the second picture.

30. Cole Sprouse.

Who knew Cole Sprouse could be so beautiful as a woman? I did.

31. Channing Tatum.

Even Channing Tatum looks amazing as a woman. Wow!

32. Lily Cole.

This woman can make anything look good.

33. Aaron Doh.

It's a yes from me.

34. James Marsden.

All the guys seem to have a very similar look when they're converted into a woman... All gorgeous nonetheless.

35. Jennifer Lawrence.

She looks like a confused Troye Sivan...

36. Billie Eilish.

I never thought I'd say this but that facial hair really suits her.

37. Kim Kardashian.

Don't show Kanye this...

38. Brad Pitt.

Angelina did it better... But props, he actually looks good as a woman.

39. Donald Trump.

Oh God, this is something I wish I could unsee. Someone get him some new eye shadow.

40. Rihanna.

Bad girl RiRi can pull off any look she wants to, even if it means being a different gender. Who was your favorite?