[All] Why is Girls' Generation's Tiffany called 'Tiffany Young' and not 'Tiffany Hwang'?

Tiffany, a member of Girls' Generation who is currently active in musicals and dramas.

As far as I know, Tiffany's real Korean name is 'Hwang Mi-young'

I know him as Changwon Hwang (Changwon Hwang)

I recently checked your profile and it says 'Tiffany Young'.

Something seemed strange, so I looked closely and saw that her full name was 'Tiffany Young Hwang'^^;;

Why can't you just say 'Tiffany Hwang'?

When I heard this name, I thought of someone

It's Ted Chiang from the movie Extreme Jobsㅋㅋㅋ

As someone who doesn't know how to name things in English

Can someone explain why Hwang Mi-young is called 'Tiffany Young' and not 'Tiffany Hwang'?