Watch Avett Brothers w/Brandi Carlile on Letterman


By Blurt Staff

The closing ceremonies of The Late Show With David Letterman continue apace, and last night’s appearance of the Avett Brothers was pretty special – not only did they do “Keep On the Sunny Side” with Brandi Carlile, some guy named Obama was also in the house as one of Letterman’s featured guests… Watch a clip of the Avetts and Carlile, below.

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