"It's a three-city tour: New York, L.A., and Detroit coming in August. The Monster Tour," Slim Shady explained in an interview with XXL magazine.
Responding to his announcement repeated on Twitter, Ri-Ri tweeted, "OH IM THERE!!!!!"
The two have had several hit songs together like 2010's "Love the Way You Lie" and the newly released "Monster".
The Monster Tour specific concert dates have not been released yet.