They join previously announced headliners Loyle Carner and LCD Soundsystem
Reserved harpist Joanna Newsom will also make a rare festival appearance
The tour will celebrate the 20th anniversary for The Postal Service's 'Give Up' and Death Cab's 'Transatlanticism'
As she kicks off her UK and European tour, Mayberry spoke to NME about the "freedom" of writing from a purely female perspective, what to expect from her debut album, and the future of Chvrches
Ben Gibbard joined both of his bands with Death Cab performing their 2003 album ‘Transatlanticism’ and The Postal Service’s ‘Give Up’ in full
"They took our maudlin little dance track and turned it into a major key club banger," said Ben Gibbard
The Chicago festival will also welcome The Mars Volta, Turnstile, Queens Of The Stone Age, Death Cab For Cutie and more
As Death Cab kick off their UK tour, Gibbard reflects on the classic 'Transatlanticism' and 'Give Up', if the joint tour with The Postal Service will happen in Europe, and the chances of new material from the synth-pop pioneers
"'Shrinking' follows a grieving therapist who starts to break the rules and tell his clients exactly what he thinks"
The band are touring for the first time in a decade this year as part of a series of joint tour dates with Death Cab For Cutie