Watch U2 Perform With Eddie Vedder, Mumford & Sons in Seattle

Band takes on "Mothers of the Disappeared" on Joshua Tree 2017 tour

U2's Joshua Tree 2017 Tour continued to deliver surprises as the band was joined by Eddie Vedder and Mumford & Sons on "Mothers of the Disappeared."

U2's Joshua Tree 2017 Tour continued to deliver surprises Sunday night in Seattle as Eddie Vedder and Mumford & Sons joined the band on "Mothers of the Disappeared."

Following the first verse on The Joshua Tree closing track, Bono asked the Centurylink Field crowd, "Where's Eddie Vedder? Spirit of Seattle, spirit of Chicago, spirit of America. Where's Eddie?" The Pearl Jam singer emerged to take lead vocals on "Mothers of the Disappeared." Bono brought out Mumford & Sons, U2's opening act, to provide harmony to the track's closing coda.

The Seattle show featured both new and old cuts. U2 performed their new Songs of Experience track, "The Little Things That Give You Away" as well as deeps cuts like "Trip Through Your Wires" and "Exit," for the first time in nearly 30 years. And, best of all, they performed Joshua Tree's "Red Hill Mining Town" for the first time ever onstage. The band's trek in celebration of their 1987 album continues Wednesday in Santa Clara, California.

U2's The Edge explains why now it is the perfect time to have a 'Joshua Tree' tour. Watch here.