Few singers have the consistency of vision to produce a career retrospective that doubles as a seamless "let's make out on the carpet" mixtape. From 1985's jazzy "Smooth Operator" to tracks from last year's excellent Soldier of Love, it's all state-of-the-art slow-jams all the time, driven by Sade Adu's touch-me-now contralto. The new bait here is a remix of "The Moon and the Sky," which trades the original's flamenco-flavored acoustic guitar for a Jay-Z cameo. Hova plays an ex-lover who hints that he may be the baby daddy to Sade's character, flipping the phrase "pregnant pause" into an instant MC classic. Like bar lighting, Sade's glow makes everyone look their best.

Listen to Sade feat. Jay-Z "The Moon and the Sky":

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“Help Me”

Joni Mitchell wrote and recorded this song for her album Court and Spark, but she had to switch from her regular band to make the song sound exactly the way she wanted. "I had attempted to play my music with rock & roll players," she told Rolling Stone. "They’d laugh, 'Awww, isn't that cute? She's trying to teach us how to play.'" Mitchell switched to a jazz band, Tom Scott’s L.A. Express, and scored the biggest hit of her career in the process.