They did it with BP and if I'm not mistaken for Treasure too.. AND NOW with Rosé! Before, they only do it for collaboration's sake and most of them or probably all are not even their artists'main music and some were just intended for western promo/debut like with CL. I wonder what changed their mind?
I think, it's a good thing. As what i've seen with BP, they expanded their sound/genre with The Album tho I hated Tommy and co's work. Anyway, this mean, my dream of Max Martin and BP working together might come true. Also, YGNGG might have outside producers as well.. hopefully!