【ネタバレ注意！】Btw, this is hilarious at speed 2x! xD
Movie: Coco | リメンバー・ミー
Miguel: Ishibashi Hiiro | 石橋陽彩
Héctor: Fujiki Naohito | 藤木直人
Song: Un Poco Loco | ウン・ポコ・ロコ (Soundtrack version)
NOTES: the part at "wake ga wakarazu, ki mama de jiyuu", I translated this out of the context of the original English lyrics (since there's no personal pronoun in the Japanese to distinguish it), so it can be interpretted like this "Without knowing the reason why, I'm freely doing as I please" or "Without me knowing the reason to why you're freely doing as you please", as in "you don't make any sense to me".