The official website for the anime Naruto announced this Sunday (23) that the band FLOW will perform the opening and ending songs for the four new episodes of the anime.
Therefore, the opening song will be a 20th anniversary version of the song “GO!!!” by the band, and the closing song will be a cover version of the song “Viva Rock” by the band Orange Range.
Naruto – New episodes of the anime receive promotional art
Additionally, the site also revealed new promotional art:

Synopsis
Naruto Uzumaki, a young orphan inhabitant of Aldeia da Folha who dreams of becoming the fifth Hokage, the greatest warrior and ruler of the village. Upon graduating as a ninja, Naruto discovers that he has a fox demon sealed within him. His father, the fourth Hokage, trapped the fox in his own son when the entity threatened to destroy Aldeia da Folha, thus sacrificing his own life. Alongside his colleagues, especially Sakura, Sasuke and mentor Kakashi Hatake, he pursues the arduous mission of becoming the greatest ninja and stopping those who plan to do harm to his city. The young trio that forms when Naruto is looking for training embarks on several missions for the village and, during the ninja exam, the villain Orochimaru, a wanted criminal, appears.
The new episodes are therefore a celebration of the anime's 20th anniversary (the Naruto anime premiered on TV in October 2002). The episodes arrive on September 3rd and will be shown weekly for four consecutive weeks.
Source: Official website
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