19. Unknown Mortal Orchestra
Frontman Ruban Nielson started Unknown Mortal Orchestra as a basement recording project before the New Zealand native moved to Portland, Oregon, and recruited bassist Jacob Portrait and drummer Greg Rogove to bring the songs to life. After a buzzed-about LP in 2011, the trio returned last month with their second album, II, a collection of spacious, loose-knit songs laced with reverb-y vocals and swirling washes of guitar. "I put more thought into arrangements. The songs kind of take you on more of a journey," Nielson told Rolling Stone earlier this year.