Macklemore & Ryan Lewis have returned to the lab, and are beginning work on their next project.

The follow-up to the duo's late 2012 album, The Heist, which spawned hits "Thrift Shop," "Same Love," and "Can't Hold Us," is now in its early stages.

Macklemore revealed the news by taking to Instagram and posting a picture with the caption, "Very happy to be back in the lab with this guy.... @ryanlewis":