Justin Bieber - Justin Bieber Swears On New Single 'Boyfriend'

Bieber let his fans know on - where else - Twitter that he was ready to preview his forthcoming track, asking them "u wanna hear how Boyfriend starts?" They did, obviously, and so Bieber posted a 10 second YouTube clip which showed him at his computer checking out a mix, testing headphones and working on his lyrics whilst a single electronic note loops and a snare and bass drum kick in at the end.

That sounds grown up in itself, but pause to the section where he's working on his lyrics and you'll spot a line which reads "If I was your boyfriend, never let you go, put you onto s**t that I bet you didn't know." We wonder if this has been subtly included in the footage by his management to indicate his newly adult aiming material, or whether he's snuck this one past them.