Justin Bieber and Selena Gomez drop clues about their break-up in sexy new duet

Reuniting might be the best thing Selena Gomez and Justin Bieber have ever done.

No, the exes haven't gotten back together romantically. Selena, 22, and Justin, 21, have reteamed professionally for their first-ever duet, a sultry track called 'Strong' that leaked on Drake's OVO Sound Radio over the weekend.

Check it out above. Yep, kind of blows away Justin's current chart-topper 'What Do You Mean?', doesn't it?

Before 'Strong' could break the Internet, the tune was removed. That might be why social media has been strangely silent on it so far.

But expect excellent reviews to eventually pour in. The rhythmic R&B slow jam is scorching, easily blowing away anything either artist has ever done.

If they want people to stop speculating about their relationship, however, this might not have been the best move. Lyrics like "I'm just wishing you were better at communication" will likely only get everyone talking about the famously on-off pair all over again.

Then again, that may very well be the point.