LOS ANGELES--(BUSINESS WIRE)--More than 4,000 Southern California residents—Herbalife members and other supporters—are gathering at Grand Park today in front of Los Angeles City Hall to tell local legislators about their experiences with Los Angeles-based Herbalife (NYSE: HLF), and show their support for the global nutrition company. The rally comes as Herbalife members from across Southern California—from San Diego to San Bernardino—visit Los Angeles City Hall to meet with key Los Angeles City