When the Chicks sat down several months ago to hear the latest cut of songs for their upcoming album — their first in 14 years — a fourth voice appeared in the background of one track.

It was Supreme Court Justice Ruth Bader Ginsburg, whose words from a 2018 discussion about the #MeToo movement were mixed into the song “For Her,” an empowerment anthem written to their former selves, to their daughters and to women worldwide, urging them to stand up, “dig a little bit deeper, and be whole lot louder.”

Read more at PBS News.