"You gotta hear this one song. It'll change your life, I swear," Natalie Portman famously murmured to Zach Braff, and the song did in fact change your life if you were an indie-rock band in the early '00s. If "Smells Like Teen Spirit" announced alternative rock's "Here we are now" moment like a ton of bricks, then those opening notes of the Shins' "New Slang" cooing softly in Portman's headphones declared indie rock's arrival like a handful of feathers. Within months of the film's festival-circuit premiere and art-house run in the late summer of 2004, the Garden State soundtrack was hovering high on the Billboard chart, thanks largely to this relatively new invention called the iTunes Store. Suddenly, the Shins, Iron & Wine, and scene forefather Nick Drake — all featured on the soundtrack — were a mere Nelly's Suit away from being No. 1 in America. It's amazing that the Garden State soundtrack, originally just a mixtape the dude from fucking Scrubs made for himself, was the catalyst for indie rock to officially enter the mainstream, but thanks to it, the door was kicked open for Arcade Fire and Bon Iver to win Grammys, for Vampire Weekend to score a gold record, and for Gotye and fun. to rule radio. Damn straight that song changed your life. D.K.