2 of pop's biggest stars to go on tour in 2015?

According to several music sites in America, there is a strong possibility that Kanye West and Rihanna will be going on tour this year.

The tour is said to cover North-America.

Yesterday, a promotional flier of the joint tour was posted on the pop culture site Complex.

The pair already have an active record together. Kanye and Rihanna made the song 'Fourfiveseconds', together and performed at the pre-super bowl concert on Sunday, February 1, 2015.

They have also collaborated on several songs such as 'Diamonds' remix, 'All of the lights', and 'Run this town'.

Both acts haven't responded to the story yet.

Kanye West and Rihanna are prepping to release solo albums this year.