Tribe Leaders is a minor twist that originated in Survivor: Samoa and has since reappeared in Cagayan and Worlds Apart. The twist sees each tribe vote someone to be its leader and make decisions for the tribe.
In Survivor: Samoa, at the beginning of the game, both tribes voted for a tribe "leader." This leader (symbolized by a leadership necklace, not to be confused with the Immunity Necklace) would make decisions in challenges such as assigning tasks for tribemates, sit-outs, etc. After a Reward Challenge, the winning tribe's leader would also assign one of his tribe mates to be an "observer." If a leader is eliminated, the tribe must select a replacement. Galu chose Russell Swan in a 5-3-2 decision. Foa Foa chose Mick Trimming in a 4-3-1-1-1 vote. After Russell S. was evacuated, Shambo Waters was elected the new leader of Galu.