Complex sentence: Many popular performers of the day played on Shindig! including Ray Charles, Sam Cooke, Lesley Gore, Bo Diddley and Sonny and Cher and was noted to feature both black and white acts during a time of racial segregation in the United States.
Split into simpler sentences: Many popular performers of the day played on the show including Ray Charles, Sam Cooke, Lesley Gore, Bo Diddley and Sonny and Cher. It notably featured both black and white acts during a time of racial segregation in the United States.