The New Orleans arrangement of "O Holy Night" that was featured on Studio 60 on the Sunset Strip is available for free download.
A group of New Orleans musicians led by Troy "Trombone Shorty" Andrews played the new version of the Christmas classic as part of "The Christmas Show" episode's story line.
The musicians are really Hurricane Katrina survivors as they played on the show. The vignette was coordinated by the Tipitina's Foundation, an nonprofit organization dedicated to helping New Orleans musicians affected by Katrina.
An MP3 of the song can be streamed or downloaded from NBC's Studio 60 music site.