On Aug. 10, during the annual “One Piece” cosplay event at Odaiba’s New World in Odaiba, Tokyo, “One Piece Cosplay Day In,” it was revealed that Japanese music group AAA would perform the theme song for the One Piece anime special to air on August 30, “3D2Y: Overcome Ace’s Death. Luffy’s Vow to his Friends!”

The song is called “Next Stage” and will be released with the 42nd single “Sayonara no Mae ni” (“Before We Say Goodbye”), to be released Sept. 19.

The news was confirmed by AAA’s official website

This year’s event featured a special collaboration with the cosplay TV broadcast “CosCosPlayPlay” to cover this special 15th anniversary special “One Piece” cosplay event. Several One Piece voice actors appeared as special guests, such as Usopp’s actor, Kappei Yamaguchi, who donned the special “Captain Usopp” post-timeskip outfit.

AAA performed at the event, playing the newest “One Piece” opening, “Wake Up!”

Update: The second trailer for the Anime special aired in Japan after the preview for next week’s One Piece episode. Be sure to check it out!