Chris Stapleton 20160423

Chris Stapleton performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Chris Stapleton performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Chris Stapleton performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Mickey Raphael on harmonica plays alongside with Chris Stapleton as they perform on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Marilee Squires, of Pleasanton, from left, Johanna Farren, of Rocklin, and Shannon Wilson, of Sacramento, enjoy the music of Chris Stapleton as he performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Chris Stapleton performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Chris Stapleton performs on stage at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)

Chris Stapleton performs on stage with his wife Morgane Stapleton at the Greek Theatre in Berkeley, Calif., on Saturday, April 23, 2016. (Jose Carlos Fajardo/Bay Area News Group)