Justin Bieber Posts 'Throwback' Photo of Him and Selena Gomez

— -- Is "Jelena" back together?

That was the question on everyone's mind after singer Justin Bieber posted a throwback photo of him and actress Selena Gomez on his Instagram page on Tuesday.

Bieber posted a photo to his Instagram page of him and Gomez, who have dated on-and-off over the past few years, which caused fans across the globe to speculate that the two celebrity exes are dating again.

The photo shows Bieber, 21, and Gomez, 23, sitting very close together on a red ATV, but the "Sorry" singer's caption underneath the photo cleared up the dating rumors right away.

"Just a throwback," Bieber captioned the photo, adding "calm down" at the end of the caption in order to squelch any rumors that the exes are back together.

Bieber and Gomez started dating in 2011, and have been dating on and off for years. In a recent interview with KIIS 1065, Bieber admitted that he hasn't been in a relationship with anyone "for a while now."

During an appearance on "The Ellen DeGeneres Show," last month, Bieber revealed that even though he is currently single, there is a possibility that he would get back together with Gomez someday, saying, "I just want her to be happy, honestly."