Simon's voice is both sweet and sly, conveying the dizziness of romance and the hard-earned wisdom of experience. Her 1972 hit “You're So Vain” combined acoustic folk-pop with driving strings and an intriguing lyric about a man whose identity has kept us guessing for decades. Simon got playful with then-husband James Taylor on a warm and sprightly duet of “Mockingbird” and then made supremely hummable and heart-tugging movie themes, including the grand orchestral whirl and emotional fireworks of “Nobody Does It Better” for the James Bond film The Spy Who Loved Me.