Singer Sia and dancer Maddie Ziegler arrive at the 57th annual Grammy Awards in Los Angeles

Singer Sia and dancer Maddie Ziegler arrive at the 57th annual Grammy Awards in Los Angeles

Singer Sia (R) and dancer Maddie Ziegler arrive at the 57th annual Grammy Awards in Los Angeles, California February 8, 2015. REUTERS/Mario Anzuoni (UNITED STATES – Tags: ENTERTAINMENT) (GRAMMYS-ARRIVALS)