Video: Katharine McPhee performs Sinatra medley with John Legend, Adam Levine and Harry Connick Jr.

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!

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