Before Dolly Parton signed on to Sabrina Carpenter's remix of "Please, Please, Please," the country star had one rule.

Carly Pearce covered Dolly Parton hit "Jolene" during the "Opry 100" special, while Reba McEntire led an all-star tribute to the singer.

Blake Shelton, Carrie Underwood and Reba McEntire joined forces for a jaw-dropping tribute to country music queen Dolly ...