Last night, Parker McCollum headlined Red Rocks Park & Amphitheatre in Morrison, Colorado, where up-and-comer Hudson Westbrook joined him as an opener and also came back out to play “Rest Of My Life” ...

He’s self-assured now, but the road to “Parker McCollum,” the album, wasn’t so steady. He originally recorded half a full-length with his longtime collaborator, producer Jon Randall.