(Photo by Kevork Djansezian/Getty Images)

[lastfm link_type="artist_info"]Mumford and Sons[/lastfm] and [lastfm link_type="artist_info"]The Avett Brothers[/lastfm] took to the stage to perform their songs, “Little Lion Man” and “Head Full of Doubt/ Road Full of Promises,” respectively before [lastfm link_type="artist_info"]Bob Dylan[/lastfm] took to the stage and the group belted out a version of “Maggie’s Farm”.

The groups, on hand to salute acoustic music, were intro-ed by David Letterman’s famous “Top 10 List”, and left the stage to a standing ovation, after a little bit of Bob Dylan on his trademark harmonica.

Cellos, an upright bass, a full brass section, and banjo helped span the sounds of folk, bluegrass, and pretty much every other genre of acoustic music.

Watch the making of the now famous Top 10 list below and then vote in our poll.

[cbsvideo]http://www.cbs.com/late_night/late_show/video/?pid=d5I9k78_tblRiXJiCNkuNzjutXLPYe4i[/cbsvideo]