When done right, co-headlining concert tours can draw massive crowds and gross millions of dollars. When co-headlining tours flop, they end with R. Kelly crying hysterically and inexplicably serving food at a McDonald’s drive-thru.

Yesterday, Rihanna might have accidentally revealed that she’s going on tour with Kanye this year (Rihzus, y'heard?), and that got our wheels spinning. Here are some co-headlining tours we want to see in 2015.