The mythology of the Tailed Beasts and their Jinchuriki is central to the Naruto story, but you don't need a catchy song to remember them all.
Despite no clear victory, Konoha emerged as the "winner" of the Third Great Ninja War, but the aftermath of this conflict lasted for years.
Jinchuriki, humans used as vessels for the powerful Tailed-Beasts, are vital to the Naruto franchise, so understanding them ...
Naruto is far weaker than before in Boruto at the moment. For now, Rock Lee is Konoha's strongest Shinobi.