Lenny Kravitz, Ani DiFranco and Mos Def are among the headliners for a benefit concert to support relief efforts for those affected by a massive oil spill in the Gulf of Mexico.

Kravitz, who lives part of the time in New Orleans, was the first to sign up when asked by Rehage Entertainment president Steven Rehage to participate in Gulf Aid. Others participating are: Allen Toussaint, Zachary Richard, Jeremy Davenport and The Voice of the Wetlands Allstars, which features Dr. John and Cyril Neville.

The benefit concert will take place on Sunday at Mardi Gras World River City, which overlooks the Mississippi River in New Orleans. Tickets cost $50.

Proceeds from the event will benefit fishermen and their families, whose livelihoods depend on the Gulf, as well as organizations that fight to protect and shore up Louisiana’s coast.