A few years back Chance The Rapper and Childish Gambino teased a joint project.

But then Gambino stepped away from mic, and focused on being Donald Glover.

However, he just jumped back into the music game, and this Instagram photo of Chance and Gambino suggests that a collaboration is again on the table.

Hawaii then LA, back to work. #roscoeswetsuit

A photo posted by Chance The Rapper (@chancetherapper) on Jan 2, 2017 at 4:16pm PST

"Roscoe's Wetsuit" is a term Gambino kept using on Twitter in 2013, right around when he dropped Because Of The Internet.

Its meaning was never revealed.

Perhaps it holds the key to what's next for Chance and Gambino.