On December 8, 2014, three days after Minaj received two nominations for the 57th Grammy Awards and a week before the release of "The Pinkprint", the tour was officially announced with seventeen dates scheduled across Europe in the spring of the following year. The announcement of the tour also revealed that R&amp;B artist Trey Songz would be the special guest joining Minaj on the European leg of the tour to promote his latest studio album, "Trigga" (2014).