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Sia Keeps It Simple During ‘Elastic Heart’ Performance on ‘The Voice’

On last night’s episode of The Voice, Sia whipped out her platinum blonde wig — with bangs down to her chin — to veil her face once again as part of her “Elastic Heart” masterclass. Surprisingly, there were no performance flourishes to rival the kinds that the Australian singer has been known for in recent months — a refreshing change that lets you focus on her powerhouse of a voice. Watch “Elastic Heart” above and refresh your Sia knowledge with SPIN‘s Artist of the Year profile.