We Were Promised Jetpacks: 'These Four Walls' 10th Anniversary with Catholic Action Presented By: KEXP Age Restrictions: 21 and over only Important Notice: All tickets are nonrefundable and nontransferable with the exception of event cancellation. Support acts are subject to change. Biography: Opening with a lone guitar line that itself has all the momentum of entire genres crammed into a single set of chords, We Were Promised Jetpacks’ 2009 release of ‘These Four Walls’ signifies a debut album that has the sort of peerlessness and potential to stand as a mainstay and luminary of indie music in the 21st century. Here we are 10 years later.