caption: Sia & 'Chandelier' Dancer <PERSON> at Grammys 2015 Sia and <PERSON> coordinate their entire outfits to look like twins on the red carpet at the 2015 Grammy Awards held at the Staples Center on Sunday (February... <PERSON>, <PERSON>, <PERSON>, <PERSON>, <PERSON>, Celebrity Red Carpet, Celebrity Dresses, <PERSON>, Celebrity Gossip
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