Justin Bieber posted a picture with his on-off girlfriend, Selena Gomez, on his Instagram account on Friday, and captioned it '#heartbreaker.'
The picture has sparked speculation as to whether the on-again, off-again couple is back together, or the Canadian pop star is just promoting his upcoming single, which is also titled 'Heartbreaker', the New York Daily News reported.
Bieber and Gomez split up in fall 2012, but have been spotted together several times since their breakup.