Metro Boomin just wrapped up his upcoming collaborative project with Nav, but naturally, he's still working non-stop. The Atlanta-based producer hinted at yet another exciting collaboration on Twitter this weekend tweeting out the phrase "Boi-1da Boomin."

The tweet most likely means that he and Toronto producer Boi-1da are in the studio together. Whether that's for one track or something bigger is anyone's guess.

Metro has casually announced a number of collaborative projects over the last few years, most of which have never made their way out. Check out 5 of the Metro-helmed projects we'd like to see released here.

Meanwhile, Metro is racking up hits at an alarming rate. We strung together all of his gold and platinum singles (of which there are many) for a recent feature.

In other news, Metro has been bumping Calvin Harris' "Slide" with Frank Ocean and Migos on a regular basis.

Any ideas on which artist Metro and Boi-1da could be laying down beats for?