A simple CD could never truly capture the manic NYC drag/cabaret act of Justin Bond (who plays Kiki, a sixtysomething wreck of a lounge singer) and Kenny Mellman (her long-suffering accompanist, Herb). But sadly, this recording of their Carnegie Hall concert last September a so-called farewell show filled with brilliant mash-ups (Eminem and Talking Heads!) and boozy monologues will have to do. Friends like Rufus Wainwright and Sandra Bernhard show up to pay tribute, and Kiki's wrenching take on ''Total Eclipse of the Heart'' is a knife to the gut. Come back soon, Kiki, we need you.