We've been wondering all night what this could be.
A few hours ago, Macklemore took to Instagram to say that he's making an annoucement, and fans are up in arms as to what it could be.
He posted a cryptic video, of what looks like stars in space, with the caption 'announcement tomorrow...'.
What does this mean? Is he going on tour? Releasing a new album?
Macklemore did post it on the same day that Taylor Swift posted a cryptic video and made her social media comeback. Is this a collab?
The plot thickens.. We'll keep you posted on this one!