The duo, which released jazz standards album Cheek to Cheek in September, will duet at the iconic Big Apple event on December 3, reported New York Daily News.
Also taking to the stage is 'Family Guy' creator Seth MacFarlane, who will sing a track from his Holiday for Swing album with Sara Bareilles.
Singers Idina Menzel, Cyndi Lauper, LeAnn Rimes and Trisha Yearwood are also slated to perform prior to the lighting of the tree outside 30 Rockefeller Plaza.