Justin Bieber has unveiled his comeback single 'What Do You Mean?'.

The singer has been teasing fans for weeks about the prospect of the track.

Today (August 28) the sprightly tune was finally released to the public online.

Speaking to Radio.com about the song, Bieber said the track reflects happier times in his life.

The Canadian said: "What Do You Mean?’ is an uptempo song.

"It’s actually perfect for summer, even though summer’s just ending. I had the best time recording it, I had the best time recording my album."

Bieber meanwhile is expected to announce a new album soon.

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Listen to Bieber's new track below: