More From R&B/Soul

John Legend performed a special show for KCRW fans at Apogee in Santa Monica, Calif. Brenda Janeiro/KCRW hide caption

itoggle caption Brenda Janeiro/KCRW
Mito Habe-Evans/NPR
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Mito Habe-Evans/NPR

Mavis Staples performs at the 2014 Newport Folk Festival. Adam Kissick for NPR hide caption

itoggle caption Adam Kissick for NPR

The Foreign Exchange performs at the Tiny Desk in May 2014. Meredith Rizzo/Meredith Rizzo/NPR hide caption

itoggle caption Meredith Rizzo/Meredith Rizzo/NPR

The Blind Boys of Alabama. Brian Blauser/Mountain Stage hide caption

itoggle caption Brian Blauser/Mountain Stage