The pair worked with Free America to decry detention of immigrants

By Will Robinson
Updated January 22, 2016 at 11:53 PM EST

John Legend recruited Juanes for a surprise performance in front of Arizona’s Eloy Immigration Detention Center, where there are reportedly around 1,500 illegal immigrants who are awaiting deportation proceedings.

The performance was part of Legend’s #FreeAmerica initiative, which seeks to cut down on the U.S.’s mass incarcerations.

While Legend and Juanes couldn’t go inside, that didn’t stop them from performing Bob Marley’s of “Redemption Song” on a stage outside the fence for the detained immigrants.

“We want to thank each and every one of you for joining us,” Legend said at the end of the performance. “Thank all the activists who’ve spent so much of their time and energy focused on this issue, and fighting for the rights of people — no matter where they’re from — to be treated humanely and given the opportunity to live a good life.”

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The duo also visited Tent City — another detention area — and the Puente, Arizona Community Center to hold discussions about mass incarceration.

See Legend and Juanes’ performance above.