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Sia Shares Earth-Shaking New Single, ‘Unstoppable’

The singer's forthcoming record, 'This Is Acting,' drops on January 29

SPIN’s 2014 Artist of the Year, Sia, is a little over a week out from releasing her new LP, This Is Acting, and so far we’ve heard a smattering of singles: “Alive,” “Bird Set Free,” “One Candle,” “One Million Bullets,” “Cheap Thrills,” and the Kanye West-co-written “Reaper.” Today she’s unleashed another, a dynamite power ballad called “Unstoppable.” Listen below, and look for This Is Acting on January 29.


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