According to CBS News, a host of music guests will perform live on CBS’ upcoming “Teachers Rock” TV special. Carrie Underwood, Dierks Bentley, Josh Groban and pop group Fun. will perform at the event benefiting teachers and education. The TV special will also feature personal recollections Dave Grohl, Usher and Maroon 5’s Adam Levine and James Valentine. Actors too will appear on the program, including Meryl Streep, Viola Davis, Maggie Gyllenhaal, Jennifer Garner, Jack Black, Morgan Freeman and Matthew Morrison. The benefit concert special will also preview scenes from the upcoming film “Won’t Back Down,” starring Davis and Gyllenhaal as two determined mothers, one a teacher, who plan to transform their children’s failing inner-city school. “Teachers Rock” airs live on Aug. 18 at 8 p.m. ET.