Bieber casually announces the major collaboration.

Halsey Lands On Justin Bieber's 'Purpose' Album

Halsey might be nervous to tell you, but she appears on Justin Bieber’s upcoming record Purpose.

Bieber first took to Instagram to reveal the news about their collaboration together on a song titled “The Feeling,” saying “Oh yeah. U guys didn’t know this. Me and @halsey got one on #purpose.”

Halsey followed up Bieber’s Tweet with one of her own, tagging Skrillex in it — who produced “What Do You Mean” and “Sorry.”

She also re-posted Bieber’s message, adding “Couldn’t be more stoked about this. Owe this dude everything. The world isn’t ready for this album.”

And this…

Oh yeah. No one told u this. Me and @iamhalsey got one on #purpose.

A video posted by Justin Bieber (@justinbieber) on

Are you here for Bieber and Halsey?