The 24-year-old 'Shake it Off' singer will work alongside Adam Levine, Gwen Stefani, Pharrell Williams and Blake Shelton to offer support and advice to contestants in the upcoming seventh season of the NBC show, reported Us magazine.
"Taylor was an absolute pleasure to work with. She had great feedback for all the contestants. She made for an amazing mentor," a source said.
The next season of 'The Voice' USA is set to hit screens on September 22, just one month before Swift will release her fifth studio album '1989.