The legendary Diana Ross is set to appear on "The Voice" next week.
Announced by Carson Daly, Ross will help to mentor contestants as they move forward with next week's round of performances.
Colbie Caillat, Meghan Trainor and Patrick Stump (Fall Out Boy) will also appear as guest mentors joining resident coaches Pharrell Williams, Gwen Stefani, Blake Shelton and Adam Levine.
Seven-time Grammy Award winner Taylor Swift will perform her chart-topping new single "Blank Space" on the Tuesday, Nov. 25 telecast of NBC's Emmy Award-winning series "The Voice" also.
"Blank Space," from her chart-topping fifth studio album, "1989," is the follow-up single to "Shake It Off," which was #1 for four weeks on the Billboard Hot 100 chart.
Swift served as a key adviser for each of the performers during the Knockout Rounds on vocal technique, stage presence and the importance of tailoring songs to fit their personalities and strengths.
Through the season's opening seven weeks, "The Voice" ranks as television's #1 reality series in both adults 18-49 and total viewers, with its Monday and Tuesday editions combining to average a 4.3 rating, 13 share in adults 18-49 and 14.0 million viewers overall, according to "most current" figures from Nielsen Media Research. The Monday edition is the #6 entertainment series on the Big 4 networks so far this season with a 4.5 average in 18-49, which combines with "The Blacklist" to make NBC's Monday the season's top-rated entertainment lineup on those networks.
"The Voice" airs Monday and Tuesday nights on NBC.