Eminem may be headlining a stadium tour with Rihanna, but it looks as though he's got something else big cooking, although we won't find out what until tomorrow.

Em isn't so big on his socials, but he took to his Instagram account to post a photo of himself on a horse in cowboy mode, with the caption, "Texas - "Square Dance" with me! Announcement coming 4/22."

We can assume Eminem will be hitting Texas for a big event in the near future, MTV News hypothesizes it's because he is headlining the Austin City Limits festival, which goes down in October. The festival is scheduled to announce their line up on April 22nd-- coincidentally enough, the same day Em promises his own announcement.

Check in tomorrow to see what the news is.