Pain, the Akatsuki leader controlled by Nagato, became one of Naruto Shippuden's most memorable antagonists during the Pain Assault arc. His theme, often called Girei, was composed by Yasuharu Takanashi and uses the same mournful style heard in other intense Naruto moments, including scenes linked to the Mangekyo Sharingan. Clips of the track spread through YouTube edits, AMVs and soundboards because its opening notes instantly signal suffering and authority. Fans still use it whenever a character adopts Pain's philosophy about pain and peace.