Natalie Portman, Sia Sing "Iko Iko" with The Roots on 'Tonight Show'

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The Roots get decked out in their best Sia wigs for the performance.

Natalie Portman joined Sia and the Roots Wednesday night for a special rendition of "Iko Iko," complete with Sia wigs for everyone. 

Jimmy Fallon and his guests performed the song wearing matching black-and-white ensembles, using a paint bucket, a deck of cards and cups as instruments. 

Portman appeared on The Tonight Show along with Last Week Tonight's John Oliver and Sia, who also performed the song "Cheap Thrills" from her album, This Is Acting

Watch the full video below.