Russo & Noe, singing the music of Frank Sinatra and Dean Martin, will perform a concert at 8 p.m. Sept. 6, 12 and 27, at Helen Theater, 115 Escowee Drive in Helen. Gabe Russo and Jim Noe are professional entertainers, not an impersonation act. Although comparisons are often made to the Rat Pack days of Las Vegas, they are based out of Atlanta and perform all across the Southeast.