As a marketing concept, Frank Sinatra's comeback album Duets was a complete success. A collection of Sinatra standards produced by Phil Ramone, the record wasn't a duets album in the conventional sense -- Sinatra never recorded in the studio with his partners. Instead, the other singers recorded their tracks separately, sometimes in different studios, and the two tracks were pasted together. In the case of several duet partners, including Bono and Barbara Streisand, this means they rely on camp as a way of making their performances interesting. Duets was a gigantic hit, rising to number two on the pop charts and selling over two million copies, becoming Sinatra's single most commercially successful record. The album was promoted as a piece of nostalgia, primarily to baby boomers but also to Generation X as a piece of kitsch. "One for My Baby (And One More for the Road)," essentially a solo performance introduced by an instrumental from saxophonist Kenny G, is a track in which the real emotional core of Sinatra's music is on display.