Rob and Eric appeared in a special "duo" concert appearance along with Ben Arnold, Martin Sexton, Cowboy Junkies and Ryan Adams at the Keswick Theatre in Glenside, Pennsylvania as part of the Mountain Stage Moving The Mountain Tour on Tuesday May 15, 2007, hosted by WXPN. This concert was recorded for initial broadcast on June 17 on the Mountain Stage program heard on public and satellite radio.

More information about this special concert event may be available at the Mountain Stage website.