Dolly Parton and her late husband, Carl Dean, kept their life together as private as they possibly could, but a new report sheds some light on his final days — and a promise she made him on his deathbed.

Dolly Parton visited her very own Tennessee mountain home on Friday. Following the death of her husband Carl Dean on March 3, the country icon made her first public appearance at Dollywood’s Celebrity Theater in Pigeon Forge, Tenn. Parton, 79, arrived at the theme park to help kick off the resort’s 40th operating season.