KEY POINTS:
Young actor and singer Hilary Duff has a message for her rehab-hopping, self-absorbed, famous-for-being famous peers: shape up and show some dignity.
Speculation is rife that the subject of her anger in her new album Dignity, including the title track Gypsy Woman, is none other than Nicole Richie, rumoured to be dating Duff's ex-boyfriend Joel Madden from Good Charlotte.
Duff has denied Richie is the subject.
