Addi Panter, Joey Martin Feek, Jala Verner and Rory Feek take a break from rehearsals on the set of the Country Music Television reality show "Can You Duet?" Panter and Verner, known as "The Herndon Twins," are members of the Memorial Road church in Oklahoma City. The Feeks, married in 2006, are members of the Old Lasea church in Pottsville, Tenn., near Columbia. The four became good friends and prayed together often during the taping of the show, Panter said. Weekly episodes air Friday evenings on the cable network.