Justin Bieber has teased fans and posted a clip of him singing him unreleased song Heartbreaker!!
Justin posted the video on his Instagram account then on Twitter as he tweeted:
yeah i just did that. http://t.co/wqHV8QUi3w
— Justin Bieber (@justinbieber) July 19, 2013
Bieber then said along with the video on Instagram:
"Me singing first line of #heartbreaker"
Have a listen above.