Gene Simmons, Jennie Garth and Dean Cain are to put their smarts on the line and compete with pre-teens in upcoming celebrity match-ups on hit U.S. game show ARE YOU SMARTER THAN A 5TH GRADER?
The stars will compete with the show's regular young geniuses in an effort to win cash for charity.
Other high-profile names taking part include Georgia's superintendent of schools Kathy Cox and quiz champ legend Ken Jennings who is TV show Jeopardy's most successful champion of all-time.