Rascal Flatts will join Kelly Clarkson, Marc Anthony and Madeleine Peyroux as performers at an upcoming concert celebrating Tony Bennett's 80th birthday. The event, billed as Singers and Songs Celebrate Tony Bennett's 80th, will take place Nov. 9 at the Kodak Theatre in Hollywood and will be co-hosted by George Clooney, Billy Crystal, Paul Newman, Jack Nicholson and Bruce Willis. Proceeds will benefit the Hole in the Wall Camps, a nonprofit organization assisting children with chronic or life-threatening diseases. Bennett, who will also perform at the concert, recently released Duets: An American Classic, a CD featuring collaborations with Tim McGraw (on "Cold, Cold Heart") and the Dixie Chicks (on "Lullaby of Broadway"). The CD also features Bennett's duets with James Taylor, Paul McCartney, Barbra Streisand, Stevie Wonder and others.