Shelton is just one of many famous names to appear on the soundtrack. Also lending their voices are Zac Brown Band, who will sing ‘When the River Goes’; ‘One Tree Hill’ beauty Jana Kramer, who will record the famous ‘Let’s Hear It for the Boy’; and Shelton’s ‘Voice’ cohort Cee Lo Green, who will sing ‘Walkin’ Blues’ with Kenny Wayne Shepherd.