Gear 5 is the awakened form of Monkey D. Luffy in One Piece, first revealed in the manga in 2022 and brought to television in the anime episode that followed in 2023. Its signature sound is tied to the Drums of Liberation, a rhythmic heartbeat that signals Luffy's Devil Fruit awakening and his freest, most cartoon-like fighting style. Clips of the transformation spread quickly through anime edits, reaction videos and short-form posts, and the sound remains popular because it instantly reads as a joyful, unstoppable power-up.