Justin Bieber looks set to finally unleash his new song 'Heartbreaker'.

The singer has been teasing the track for weeks but no official release date had been forthcoming.

However, the Canadian will unveil 'Heartbreaker' at midnight on Sunday (October 6) night.

It looks set to be part of a new project created by Bieber called Music Mondays, which appears to be scheduled for the next ten weeks before a new film is released.

His manager Scooter Braun tweeted: "Monday is coming. #musicmondays #10weeks then....#BELIEVEchristmasMOVIE."

His SB Projects account meanwhile said: "Who's ready for #MusicMondays with @justinbieber? #Heartbreaker coming Sunday night at midnight." Watch Justin Bieber perform live below: