Robert Glasper Grateful for Chris Brown's Grammy Diss, Still Wants to Collab

Grammy-winner Robert Glasper is thankful for Chris Brown's temper tantrum about this year's Grammy ceremony ... mainly because the controversy helped line his pockets!!!

We caught up with Rob at LAX, where he told us he's still raking in the residuals from his "Black Radio III" album.

If you remember, the project took home the "Best R&B Album" Grammy in February -- and Chris cast a bigger spotlight on Robert's win with a sore loser reaction ... asking his 130 million+ followers "Who The F*CK is Robert Glasper?"

Rob eventually got an apology from Chris, but even better than that -- he sold the negative question on t-shirts, which he says earned him enough to buy a really nice car.

Our only question now is ... are we talking a Bentley or a very brand-new Buick?!!

He also says Chris' viral outburst scored him around 20,000 new followers and several musicians flooded his DMs hoping to collaborate.