The sultry singer gets the crowd going during a concert Down Under. Plus: Hailee Steinfeld, Christina Milian & Violet, Gwyneth Paltrow, Sandra Bullock and more

  • SHEER GENIUS photo | Rihanna

Credit: Cameron Spencer/Getty

Published: Friday Oct 04, 2013 | 07:00 PM EDT

SHEER GENIUS

Work it, girl! Rihanna struts her stuff while performing Thursday night at Sydney's Allphones Arena, the latest stop on her "Diamonds" world tour.