• COUNTRY STRONG photo | Blake Shelton, Usher

Credit: Brett Deering/NBC

Published: Thursday May 30, 2013 06:00 AM EDT



They're here to help! PEOPLE cover boy Blake Shelton and Voice co-judge Usher join forces Wednesday night for the "Healing the Heartland" relief benefit concert in Oklahoma City, Okla., where a roster of singing stars performed to raise funds for those affected by the recent tornadoes.