Joe Henry says he just had some other things going on, like producing Elvis Costello and Ani Difranco.

NPR: Joe Henry Is a Still Driving Man

Dr. John, Ani DiFranco, The Hold Steady, and Newton Faulkner perform live from the NON-COMMvention in Philadelphia.

NPR: Dr. John, Hold Steady, Ani DiFranco in Concert

The title track off his new album, City That Care Forgot, features an artist with whom he'll share a stage at NON-COMM: Ani DiFranco.

NPR: Dr. John, Hold Steady, Ani DiFranco in Concert

Her music is both pop and folk, with flecks of Bonnie Raitt, and reflects the influence of artists like Ani DiFranco and Joni Mitchell.

WSJ: A Songwriter's Surf Hideaway

Hear Ani DiFranco perform.

NPR: Dr. John, Hold Steady, Ani DiFranco in Concert