Justin Bieber Jimmy Fallon Someday VideoLeave it to Justin Bieber's future self (Jimmy Fallon with a hair piece, of course) to warn him of the imminent downfalls of his future. Well at least that's what goes down in the video spoof the teen heartthrob and the late night host filmed, ribbing on Bieber's new fragrance, 'Someday.'

In an ethereal world, where subtle wind machines are bountiful, Bieber whispers to his future self, "Someday we'll be together. Someday I'll be next to you. Someday I'll be older, fatter."