Macklemore and Ryan Lewis had a huge 2013, despite releasing no new music. The duo's debut project, The Heist was released in 2012, but it made the majority of its impact throughout the following year, earning the two collaborators some Grammy nominations in the process.

It seems that the rapper/producer team is finally through pushing their breakthrough project, as Mack announced via Instagram that he and Lewis are back in the studio together, captioning a photo of his creative partner with "Very happy to be back in the lab with this guy.... @ryanlewis".

No further details on what the two have in store for us, but chances are they've got a new full length in the works.

View Macklemore's Instagram post below.