28. Beach House, 'Bloom'
How did Jay-Z and Beyoncé's favorite indie-pop duo top their 2010 breakthrough, Teen Dream? By coming up with an even prettier vision of synth-y, Eighties-steeped romanticism. Languid lead singer Victoria Legrand has some dark stuff on her mind – mortality and ruin keep bubbling to the surface of the Baltimore act's fourth LP ("Can't keep hanging on . . . to what is dead and gone," she sings on "Myth"). But you'd hardly know it from the blissful way she lets her voice blend with the softly bobbing organ chords and arpeggiated guitars.