As Cyrus will replace Gwen Stefani, Pharrell will be exiting the show too -- for the season at least -- and Keys will be filling his seat. In 2014 Keys joined the show as Pharrell's guest advisor.
This is the first time there will be two female judges at once. As it stands, Keys will serve as a coach alongside Cyrus and returning stars Adam Levine and Blake Shelton.
Watch 'The Voice' Coaches Dramatically Recite Each Other's Songs
While other singing competition shows such as American Idol have been known to keep the same judges over several seasons, The Voice regularly mixes up the talent sitting in its big red chairs, changing the on-air dynamic in the process. Other previous coaches include Cee Lo Green and Usher.
This formula could be key to The Voice's continued success. As the show rises in age, it continues to be an important part of NBC's primetime lineup during both its fall and spring cycles. The network has used the singing competition to launch original series like The Blacklist and, most recently, Blindspot. The 2016-17 TV season will be the first without The Voice's main rival, American Idol, which will leave the air in April.