Johnny Cash's performance at Folsom Prison was a groundbreaking event that brought attention to the plight of prisoners and helped to humanize them in the eyes of the public.

The Sentencing Project is a non-profit organization that works to reduce the number of people in prison and to promote humane and effective criminal justice policies.

Bob Dylan's song "I Shall Be Released" was inspired by his visit to Folsom Prison and his interactions with the prisoners there.

Justice Rising is an annual music festival that brings together artists, activists, and community members to raise awareness about the issue of mass incarceration and to advocate for criminal justice reform.

Bruce Springsteen has been a longtime advocate for the rights of prisoners and has performed concerts in prisons around the world, including at Folsom Prison and San Quentin State Prison.

Music Inside is a documentary film that follows the experiences of a group of prisoners who participate in a music program at a maximum-security prison.

Bonnie Raitt founded the Sweet Relief Musicians Fund in 1993 to provide financial assistance to musicians in need, including those who are incarcerated.

The Vera Music Project is a music program that provides music education and performance opportunities to incarcerated youth.

Tracy Chapman has been a vocal advocate for the rights of prisoners and has written songs about the experiences of incarceration, such as her song "Fast Car".

Free America is an organization that was founded by musician John Legend to advocate for criminal justice reform.

Joan Baez has performed concerts in prisons and has spoken out against the death penalty.

The California Music Project is a music program that provides music education and performance opportunities to incarcerated individuals.

Bruce Springsteen has been a longtime advocate for the rights of prisoners and has performed concerts in prisons around the world, including at Folsom Prison and San Quentin State Prison.

Music Inside is a documentary film that follows the experiences of a group of prisoners who participate in a music program at a maximum-security prison.

Bonnie Raitt founded the Sweet Relief Musicians Fund in 1993 to provide financial assistance to musicians in need, including those who are incarcerated.