Dolly Parton effectively taught Jane Fonda how to be a better celebrity, more believable hillbilly, and veteran performer in one trip.

In 2017, he sang the Dolly Parton classic “Jolene” with Miley Cyrus in a New York City subway station. More recently he and Ed Sheehan covered Chappell Roan’s “Pink Pony Club” disguised as street ...