If the Crystals represent the joy of girl groups, the Shangri-Las exemplify the heartbreak, the rueful morning to the blissful night. The two sibling sets from Queens imbued tracks like "Leader of the Pack," "I Can Never Go Home Anymore" and "Past, Present and Future" with a toughness barely concealing vulnerability, backed by classical-indebted arrangements that cast their frank scenarios in a vaguely unreal haze. As such, they're perhaps the girl group most beloved of critics and rock fans, and undoubtedly the one that modern girl groups and retro-styled singers (not to mention punk and grunge bands, among other seemingly unlikely followers) are most indebted to. "Amy Winehouse played ['Remember (Walking in the Sand'] for me the first day that we met," Mark Ronson told Rolling Stone last year. "I listened to it that night and came up with the main piano chords for 'Back to Black.'"