Justin Bieber's new album is officially in stores tomorrow (June 19th), and his good friend/body double, Jimmy Fallon is helping him out.

Jimmy is hosting an online 'Ask Justin' session through YouTube that he will air on Thursday night.

In the promo Jimmy admits that he is the older version, with Bieber adding in that he is fatter as well.

Either way nothing that these two will do can compare to Fallon's earlier Bieber impressions!  You only have one day left to ask the Biebs anything, so watch the video and click the links to get your question in.

What are you going to ask him?

Fallon Hosts Ask Bieber