Taylor Swift will serve as the key advisor for all of the competing artists on each of the four teams on this season of "The Voice," NBC has officially announced.

"Swift advised each of the performers during the upcoming Knockout Rounds -- airing Oct. 27-28, and Nov. 3 -- on vocal technique, stage presence and the importance of tailoring songs to fit their personalities and strengths," the network said in a news release Friday.

"These artists will continue to try and earn the support of their respective coaches, who will be forced to decide who will move on to the live Playoff Round. Each coach will have the opportunity to strategically steal one more artist in the Knockout Round."

Swift will be replacing Coldplay frontman Chris Martin, who served as the key advisor for last spring's edition of "The Voice."

Swift, 24, is to release her fifth album 1989 on Oct. 27. It has already produced the No. 1 single "Shake It Off."

The four teams on Season 7 of "The Voice" are led by Adam Levine, Blake Shelton, Pharrell Williams and Gwen Stefani. The singing competition is hosted by Carson Daly.