Pop's New Power Girls

Look out, Britney! There's a new wave of women rocking the mic – and taking a cue from their elders. Check out Ke$ha, Hayley Williams, Orianthi and more

ORIANTHI & AVRIL LAVIGNE

Like Lavigne – who got her start singing with Shania Twain at a county fair – Orianthi first made a name for herself alongside a superstar: Michael Jackson. Now, the late king of pop's guitarist is picking up where Lavigne left off, offering her own brand of empowered lyrics, bolstered by self-shredded guitar licks.