The Achy Breaky Heart hitmaker read a speech by South African former archbishop Desmond Tutu, while the other actors stood onstage and recited other passages during a joint performance at the Concert for Social Change in Los Angeles.

After the event, Cyrus wrote on Twitter.com, "Great night with so many cool people gathered to stand up for Robert F. Kennedy Human Rights Foundation. Read a speech from Desmond Tutu!!!!"

Musicians including Melissa Etheridge, Tom Morello, and Jackson Browne played sets featuring songs about social justice during the show, which was held by bosses at the Robert F. Kennedy Human Rights Foundation and the GRAMMY Museum to raise funds for their joint music education program.

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