How do you become famous in dreamlife superstar?

Writer: Sign up for any writing oriented activities

Pop Star: Sign up for "Sing In Band"

Reality TV Star: Anything, a talent scout will come to you at random...This usually happens when you don't do things that fall under another category.

Movie Star: Talk to people and constantly chose, "Let's Do Something!" and pick get a coffee, or let's see a movie when they are available.

Athlete: Sign up for any sport

Fashion Designer: Sign up for any artistic activities

Hope this helps. :)