Jinyoung from GOT7
Some dramas he’s been in:
He is Psychometric
School of Magic
Legend of the Blue Sea
A Stray Goat (this one is a movie)
And of course I have to add Seo KangJoon from 5urprise 
Some dramas he’s been in:
Are You Human Too?
Cheese in the Trap
The Third Charm
IU (Lee JiEun) (I’m not sure if she is in a group or if she is a solo singer)
Acted in:
Moon Lovers: Scarlet Heart Ryeo
Persona
My Mister
I’m just adding the celebrities as I remember them.