It had to be you (with Michael Bublé) -- People (with Stevie Wonder) -- Come rain or come shine (with John Mayer) -- Evergreen (with Babyface) -- New York state of mind (with Billy Joel) -- I'd want it to be you (with Blake Shelton) -- The way we were (with Lionel Richie) -- I still can see your face (with Andrea Bocelli) -- How deep is the ocean (with Jason Gould) -- What kind of fool (with John Legend) -- Somewhere (with Josh Groban) -- Love me tender (with Elvis Presley)