File:Brook Smoking in Movie 10.png

Source
Strong World

Brook, the musician with the stage name "Soul King", is a member of the Straw Hat Pirates and is on a personal mission to revisit Laboon, the whale who the Rumbar Pirates had a special relationship with via music, in order to deliver the final song coordinated by the Rumbar Pirate Crew that was recorded to the Tone Dial before the entire crew was poisoned to death. The reason Brook appears as a living skeleton when the Straw Hat Pirate Crew comes across the Rumbar Pirate ship, is because he ate the Yomi Yomi no Mi (Revive-Revive) Devil Fruit, which resurrected Brook after a poison attack ahnihilates the Rumbar Pirate Crew, who promised to play Laboon's favorite song, "Bink's Sake" as their final act together as a crew.