When playing Seatle, WA – you need to look for the locals. U2 hit the stage Sunday Night and according to Rolling Stone Bono asked the crowd “Where’s Eddie Vedder?” The Pearl Jam singer then appeared on stage to take the lead on U2’s “Mothers of the Disappeared” from their 1987 Joshua Tree album. Opening act Mumford & Sons added some harmony at the end. (Rollingstone.com).