It’s official: Taylor Swift is coming to The Voice . The “Shake It Off” singer will appear as a “key adviser” to all the coaches this season. NBC officially announced Swift’s role today, October 3. Swift will work with all four coaches and serve as the sole mentor for all of the contestants on the various teams. The Grammy winner will make her first appearance on Monday, Oct. 27, the same day her new album, “1989,” drops. Swift will appear again on the 28th and on Monday, Nov.