Tori Kelly has teased details of Justin Bieber's new music.

The Canadian has been busy for a number of months working on fresh material.

He is due to release the single 'What Do You Mean' on Friday (August 28) and it seems an album may follow later this year.

Speaking to ABC Radio, Kelly said that she has heard some new Bieber material - and it seems the 21-year-old is going in a new direction.

She revealed: "I got to hear just little teasers of things and I’m actually...I’m stoked for him.

"It is definitely, like, a new sound and it seems very bold and just very different, so I think he’s feeling good."

Kelly meanwhile recently revealed uploaded a teaser clip for 'What Do You Mean' on Instagram.

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Watch Tori Kelly being interviewed below: