Rihanna and Eminem are hitting the road together in the US this summer for a string of joint stadium concerts.

The pair will kick off their Monster Tour at the Rose Bowl in Los Angeles on the 7th of August, before heading to New York on August 16th and Eminem's hometown Detroit on August 22nd.

The stars have collaborated four times in the recording studio in the course of their musical careers. They first teamed up on the 2010 song "Love the Way You Lie" and most recently on Eminem's hit single "The Monster".