Sia is said to suffer from severe anxiety issues, which prevents her from showing her face, yet she still manages to generate millions of impressions. Maddie Ziegler (the dancer the world fell in love with) from “Chandelier” & Kristen Wiig, performed alongside her for this year’s Grammys. 4 Responses Marie February 9th, 2015 That little girl is amazing Reply Ica February 9th, 2015 I love this Reply Tyra February 9th, 2015 They needed to wear black leotard on stage though Reply Roger February 10th, 2015 she is so brave Reply Leave a Reply Cancel ReplyYour email address will not be published.CommentName* Email* Website Δ