Bumbershoot 2013 happens this August 31st - September 2nd and the lineup is insane.
Here's a short list:
Heart, The Grizzled Mighty, River Giant, Tegan and Sarah, Alt-J, The Maldives, MGMT, Bassnectar, Allen Stone, The Breeders, !!!, The Zombies, Baroness, The Physics, Red Jacket Mine and so many other bands that you will love.
Plus, Death Cab For Cutie will be playing their 2003 breakthrough album, Transatlanticism, in its entirety.
Go here for more information to purchase tickets.