Bastions () is a South Korean animated television series airing on SBS TV. The series fuses superhero fiction and K-Pop.
A group of young idols live in a world where superpowers are an everyday thing. The group struggles to learn how to use their powers to become superheroes and save the planet from villains trying to pollute the environment.
In April 2023, a new animated series produced for SBS TV was first announced, featuring a new single from boy group BTS. The series was produced by Thymos Media and Navel.
BTS provided the music for "The Planet", which serves as the opening theme for the show. "The Planet" was recorded by the whole group before going on hiatus to complete military service and venture on solo careers. Additional contributors to the soundtrack include Le Sserafim, Heize, AleXa, and Brave Girls, who provide one of their first songs since leaving Brave Entertainment.
Bastions first aired on SBS TV in South Korea on May 14, 2023, at 7:30 am. Despite this the show can be seen on the anime streaming service Crunchyroll a day prior in some regions.