John Joseph "Jay" Joyce is an American record producer, songwriter and session musician. In the 1990s, Joyce, with Chris Feinstein and Brad Pemberton, recorded and toured as Iodine and began working as a record producer, working with artists such as The Wallflowers, Tim Finn, Emmylou Harris, Patty Griffin, White Reaper, Lainey Wilson and Cage the Elephant. In the 2000s, Joyce began producing for Eric Church, Halestorm, Zac Brown Band, Brandy Clark, Amos Lee, Declan McKenna, Fidlar and Little Big Town. He has also played guitar for Crowded House, The Wallflowers, John Hiatt, Iggy Pop, Brendan Benson and Macy Gray.

The Wallflowers is an American rock solo project of American singer-songwriter and multi-instrumentalist Jakob Dylan. The Wallflowers were originally a roots rock band formed in Los Angeles in 1989 by Dylan and guitarist Tobi Miller. The band has gone through a number of personnel changes but has remained centered on Dylan.