Justin Timberlake, Mavis Staples and Gary Clark Jr. are due to perform at the eighth annual Apollo in the Hamptons event on Aug. 12.
Also, regulars Jamie Foxx, the Roots and Pharrell Williams are expected to take part.
The fundraiser — which has seen performances by Jennifer Lopez, Lionel Richie and Usher, among others — has raised $20 million for the iconic Harlem venue. The bash will be held at billionaire Ronald Perelman’s home, the Creeks, in East Hampton.