The Voice, the singing competition series, has announced the introduction of new mentor roles and a new all-star competition. Three iconic coaches, including CeeLo Green, Michael Bublé, and Jennifer Hudson, are returning to the show to mentor contestants. The show premiered its 29th season last month and will see the return of familiar faces, new advisors, and an in-season competition where each of the three coaches will bring back two artists from their teams in previous seasons to compete in head-to-head sing-off battles. The winner of the new competition will determine the season's winner.