The charming London indie-folk band Fanfarlo performs a holiday-themed set in the NPR Music offices. hide caption

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Fanfarlo

The charming London indie-folk band performs a holiday-themed set in the NPR Music offices.

Lightning Dust specializes in quiet moments, whether in a shared glance or a finely-knit harmony. Frannie Kelley/NPR hide caption

itoggle caption Frannie Kelley/NPR

Lightning Dust

Lightning Dust specializes in quiet moments, whether in a shared glance or a finely knit harmony.

Becky Lettenberger/NPR

Andrew W.K.

The fearless party-rocker stands in NPR Music's offices and performs four songs alone at the piano.

Zee Avi. Frannie Kelley/NPR hide caption

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Zee Avi

Avi sings three hushed lullabies, including her signature cover of Morrissey's "First of the Gang."

Bowerbirds' captivating set of handcrafted songs has a distinctively sparse, harmonious sound. Bob Boilen/NPR hide caption

itoggle caption Bob Boilen/NPR

Bowerbirds

Bowerbirds' handcrafted songs creak and swell like wooden floorboards in an old house.

Frannie Kelley/NPR

K'naan

The rapper's set exuded shimmery grace while incorporating the sounds of soul, pop and reggae.

Frannie Kelley/NPR

Sondre Lerche

The Norwegian-born singer-songwriter performs three liltingly sweet songs in the NPR Music offices.

Coburn Dukehart

Ralph Stanley

See and hear the legendary bluegrass and old-time gospel singer give an a cappella performance.