U2 have now added Phoenix to The Joshua Tree Tour 2017. They'll play a show Sept. 19 at University of Phoenix Stadium. Presale tickets for subscribers will be on sale from 10 a.m. (Phoenix time) Tuesday, June 20 through 5 p.m. Thursday, June 22. The general sale begins at 10 a.m. Friday, June 23. Tickets available at www.u2.com/tour.