Blake Mills, the unofficial fifth member of Dawes, joined the LA based group for the entirety of their show at Port Chester, NY’s Capitol Theater last night. Mills and the founding members of Dawes have been friends since they were teenagers, and they formed the band Simon Dawes together in high school. He remains close with the quartet and continues to contributes to the group on a songwriting level.

Mills’ anticipated sophomore record is due out in the fall. Dawes will back Mills on Friday at the Newport Folk Festival, while Mills will join Dawes for their late night “Dawes and Friends” shows.