Little Big Town and Grace Potter will perform at the T.J. Martell Foundation 37th annual honors gala on Oct. 23 in New York City. They will be among those providing musical tributes to this year's honorees Russell Simmons, Del Bryant, Edward Walson and Randy Jackson. The foundation is the music industry's largest foundation that funds medical research focused on finding cures for leukemia, cancer and AIDS. Little Big Town's new album, Tornado, will be released Sept. 11. Performing on Rascal Flatts' Changed tour with the Eli Young Band and Edens Edge, the group will appear Friday (Aug. 31) in Indianapolis, Saturday in Pittsburgh and Sunday in Columbia, Md.