Justin Bieber has unveiled his latest new song, 'As Long As You Love Me'.

The track, which features Big Sean, sees the teen star take a dubstep turn, with plunging bass drops peppering the song.

Taking to Twitter to unveil the song - which is the latest to come off his forthcoming album 'Believe' - Bieber asked fans to "BIEBERBLAST it to #1".

It features lyrics such as: "As long as you love me. We could be starving. We could be homeless. We could be broke. As long as you love me. I'll be your platinum, I'll be your silver, I'll be your gold."

Bieber meanwhile later tweeted that he had just played to 300,000 people in Mexico, stating that "everything" about the show was "special".

Listen to Justin Bieber's 'As Long As You Love Me' below: