Merriam-Webster defines stockholm syndrome as "the psychological tendency of a hostage to bond with, identify with, or sympathize with his or her captor." If Rocksmith 2014 is holding you captive, you can be downright ironic thanks to Muse's "Stockholm Syndrome," now available as part of a 5-song DLC pack for the game.
The pack's other songs included are "Supermassive Black Hole," "Time Is Running Out," "Hysteria" and "Muscle Museum." The whole kit-n-kaboodle is yours for $11.99. You can also buy the songs individually, though they'll cost $2.99 piecemeal. Muse joins previous DLC runners such as Radiohead and Green Day, which means the game can unofficially provide the soundtrack of '90s/early '00s teenage angst.