Two of the greatest performers of their respective generations discuss the people and the songs which make up the history of modern popular music. Tony Bennett, the irrepressible 83 year-old wonder, joins Elvis for his interview/performance show. The legendary singer, whose career spans the extremes of covering Hank Williams in the 1950's to winning Grammy's and partnering with k. d. lang in the first decade of the 21st century, is well matched with Elvis, whose own musical tastes and styles run the gamut of genres - past, present and future. Tony, accompanied by jazz pianist Bill Charlap, sings several classics and, according to the Sundance web site, "pulls a very special surprise guest from the audience for a spontaneous and irresistible duet".