ERIC CLAPTON and WILLIE NELSON

Like many locals, Dr. John was left devastated when Hurricane Katrina destroyed the Louisiana city in 2005, and he's upset by the ongoing struggles there.

And so he rounded up friends like Clapton, Nelson, punk icon Ani DiFranco and film composer Terence Blanchard to join him as guests on his new album City That Care Forgot.

Clapton joins Dr. John on the track Time For A Change, while Nelson features on Promises, Promises.

Source: WENN