Variety reports that the project is top secret, with YouTube's chief business officer Robert Kyncl promising the project "to be one of the most talked-about YouTube originals ever."

YouTube has already released originals on Ariana Grande, BTS, Demi Lovato, and Katy Perry. During yesterday's event, the video company also revealed that they plan to make originals available on the free site rather than available to premium subscribers only.

Earlier this week Bieber teased images of himself and Ed Sheeran, hinting that a new collaboration could be in the works.

Bieber's partnership with YouTube could be something to do with his follow up to 2015's Purpose, which is "coming soon" according to Bieber's Coachella appearance during Ariana Grande's set.