When Grace Potter and Nathaniel Rateliff Nathaniel Rateliff both performed at New York’s Beacon Theatre as part of the Love Rocks NYC benefit show - they must have made a connection - since the Colorado native hopped on stage  to join Grace for the first song of her encore at Morrison, CO’s Red Rocks Ampitheatre Wednesday (June 16). Check out the  two covering  Van Morrison’s “Brand New Day”

Potter also worked portions of Phish’s “Tweezer” and the Grateful Dead’s “Friend of the Devil” into her set