It's been revealed that Ikimonogakari's new single "BAKU" (February 24 release) will include a remix version of "Blue Bird" by Slushii. 

The single's title track "BAKU" is the opening theme for TV Tokyo's anime 'BORUTO- NARUTO NEXT GENERATIONS.' Meanwhile, "Blue Bird" was used as the opening theme for 'NARUTO Shippuden' back in 2008. Slushii commented, "Remixing 'Blue Bird' was a very special experience for me. I used to watch 'NARUTO Shippuden' in realtime back when it was airing, so it felt nostalgic as I was remixing the song." 

This will be the first time for a remix of Ikimonogakari's song to be released.