To be honest, I don't like the original sort of attributes.
Now, cute, cool, sexy, pretty is like modeling. So, we can easily promote them in the dressing room. Let's say, idol A gets maxed stat for 4 modeling. How will you describe her? She is cute, cool, sexy and pretty. Well, you know what I mean :p
I think cute, cool, sexy, pretty should be considered as a trait. It helps players to build an unique icon for each idol.
Instead of it, the idol needs appearance. It's talent inborn. It's simple and clear.