The trio will appear in the second hour of the now two-hour Nationals event airing May 15. As first reported by TVLine.com, the first hour will find Tina (Jenna Ushkowtiz) suffering a mild head injury, which will cause her to experience an alternate reality as New Directions prepares for Nationals.
The second hour will feature the actual competition, which will serve as the New Directions seniors' last chance to win at Nationals.
A rep for the Fox series did not immediately respond to TVGuide.com's request for comment.
Do you think New Directions can win? Hit the comments with your thoughts.