Greg Saunier (left) and Sean Lennon of the band Mystical Weapons. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

The Polyphonic Spree performs a Tiny Desk Concert. Lauren Rock/NPR hide caption

itoggle caption Lauren Rock/NPR

Members of the Victorian State Youth Brass Band of Australia during an attempt to set a world record by playing Christmas carols for 40 straight hours. William West/AFP/Getty Images hide caption

itoggle caption William West/AFP/Getty Images