It appears as if Kanye West and Rihanna will not only be touring the world in 2015, but might be doing it together. The Finnish arm of Live Nation, the giant concert promoter, recently posted a show that was billed for "Kanye West & Rihanna." Tickets were listed as being available for purchase next Thursday (Mar. 5); the concert, which would take place on July 25 in Tallinn, Estonia, has since been removed from the website.

This is not the first time there have been whispers about a joint tour between West and Rihanna. Last December, each artist was named in separate--but identical--lot items during a fundraising auction for the Clara Lionel Foundation. The prize? "Be Kanye West’s [or Rihanna's, per the lot number] special front row VIP guest for his upcoming North American 2015 tour. Experience a rare opportunity meet & greet with the icon.”

Kanye and Rihanna have most recently worked together on "FourFiveSeconds," a collaboration with Paul McCartney. The trio performed the song, which is widely believed to be on Rihanna's forthcoming, West-produced album, at the 57th Grammy Awards in Los Angeles. She previously opened on his 2008 Glow In The Dark tour, which also featured N.E.R.D. and Lupe Fiasco.