Justin Bieber has revealed that he will unleash two new tracks next week.

The singer is currently in the throes of his Music Mondays project, which sees him unveil a new track every Monday until Christmas.

He has so far unleashed 'Heartbreaker' and 'All That Matters', with both tunes hitting No.1 on iTunes charts across the world.

Bieber has now confirmed that there will be two tracks uploaded next week - 'Hold Tight' and the Tyga collaboration 'Wait For A Minute'.

Tyga tweeted that the latter will be available on iTunes from Tuesday (October 22).

Speaking meanwhile about 'Hold Tight', Bieber's visual buddy Alfredo Flores said on Twitter: "A few babies might be made to this one..."

The Music Mondays project will run for a total of ten weeks before Bieber unleashes new film Believe 3D on Christmas Day. Listen to Justin Bieber's 'All That Matters' below: