Dolly Parton recorded her part of the song "Torn" in June, just two months before she died on August 25. It was the last recording the country star made, and she was marked by her illness, according to Bono.
You can hear it. And I can't even listen to it now, he says.
Bono initially hoped to do an Irish folk song with her, but she objected. Instead, Bono and Johnny McDaid of Snow Patrol covered a song Dolly Parton had already begun writing.
She gave it her all when she sang, and I can't believe it's an 80-year-old woman you're hearing, says Bono.
U2's new album "Carnaval de luz" will be released on November 13.
