Lena Dunham's HBO series, Girls, is a groundbreakingly honest depiction of Hipster, Brooklyn. And its soundtrack album is an equally on-point mix of hipster mood music – from the high-end dance-floor whoo!-whoo! of Robyn and Santigold (who contributes the hip-hop anthem "Girls"), to the strum-journal reflections of Fleet Foxes, to the lustcharged punk of Sleigh Bells and the Vaccines. There are elegant new tracks from fun. and Michael Penn. But the best moment might be pop-folk sister act Tegan and Sara's sweet, funny take on the Stones' "Fool to Cry," reimagining classic rock just as Dunham has hotwired the rules of New York storytelling.