Don't expect innovation from these titans of Southern rap. Instead, brace yourself for chanted celebrations of money, cars, cocaine, and Waka and Gucci themselves. Gucci delivers mush-mouthed lines like "I'm not a blogger/I'm not a jogger/More like a mobster." Waka raps circles around him on songs like "Suicide Homicide," but nothing rises to the level of Waka's thunderous 2010 solo album — maybe because young-gun producer Lex Luger is absent. Instead, the tracks are pale imitations of the hyperspeed high-hat-and-bass sound Luger originated — fitting accompaniment for two MCs coasting by.

Listen to "15th and the 1st":

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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.