Don't let the spiritual-rebirth title of Xtina's fifth LP fool you. Christina Aguilera has only one religious affiliation – the cult of the voice. And she has a great diva theme to rap her pipes around: surviving a divorce. "Spin around in circles on my middle, middle finger," she sings on "Circles." Producers like Shellback and Max Martin give her top-line tracks to body-slam, but, sadly, her bombastic breakup ballad with Blake Shelton, "Just a Fool," sounds more like a battle round on The Voice than a friendly duet. It's just one telling moment where this vitriol-tsunami of a record misses a chance to connect Aguilera's music with her warm, empathetic TV presence. 

Listen to 'Lotus'

“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.