Which One of These Stars is Really Sia? Issue 4.1 - Entertainment - Jul 2, 2014 By: Leah Prinzivalli SHARE: Tweet 1 of 8 Robyn Robyn is a blonde pop star from abroad. Sound familiar? Sia 17 Years Later: What ‘Thong Song’ Music Video Gets Wrong About Women Quirky Beauties Wearing Watches?!