The Canadian pop star chose 24 December to announce he will release a new single, called Yummy, on 3 January - the debut track from an upcoming, as yet untitled fifth album.
The 25-year-old also revealed he is to tour the US and his home nation between May and September.
The singer announced as well he is to appear in a new documentary TV series.
Bieber took an extended break from music in 2017 after cancelling the last 14 dates of his Purpose World Tour.
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