Justin Bieber posts photo with Selena Gomez, labels snap '#heartbreaker'

justinbieber via Instagram

Justin Bieber captioned this snap of him with Selena Gomez '#heartbreaker.'

Are Selena Gomez and Justin Bieber back together? Or was it red, white and boo-hoo for Bieber's Independence Day festivities?

Bieber, 19, posted a photo of the two hanging out on his Instagram account Friday.

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The Canadian pop star captioned the picture '#heartbreaker,' sparking rumors that a reunion with his on-again, off-again ex-girlfriend over the Fourth of July holiday didn't go as planned.

Or perhaps Bieber is simply shrewdly promoting his upcoming single, also named 'Heartbreaker.'

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Bieber and Gomez split up in fall 2012, but have been spotted together several times since their breakup.

The 'Baby' singer hasn't announced an official release date for 'Heartbreaker,' but tweeted that 'It's gonna happen suddenly.'