Four-person rock group Swimy has announced on their Twitter that they will be performing the next Naruto Shippuden ending, which will kick in starting next month.
— Swimy (@swimy_official) December 5, 2016
The song, previously unreleased and written specifically for the series, is titled "Zetsu Zetsu" ("Absolutely"), and will be part of the show starting with episode 488. This will be Naruto Shippuden's 40th ending theme.
The rock group, which mixes male and female vocals, previously supplied the ending theme "Acchi Muite" to Gintama.
Kara Dennison is responsible for multiple webcomics, runs social media and interviews for (Re)Generation Who, and is half the creative team behind the OEL light novel series Owl's Flower. She blogs at karadennison.com and tweets @RubyCosmos.