Katharine McPhee joined Adam Levine, Harry Connick, Jr., and John Legend to open Sinatra 100 – An All-Star Grammy Concert, a CBS special tribute to the legendary Frank Sinatra. The group performed a medley of some of Sinatra’s iconic songs.
Kat first hit the stage with a sultry rendition of “You Make Me Feel So Young,” and she later joined Legend for a duet on  “You and Me (We Wanted It All).” Check out a video of Kat’s performances above!