As rap-rock team-ups go, the pairing of bros-in-tattooed ­arms Yelawolf and Travis Barker is promising: The Alabama MC and Blink-182 drummer are fleeter and slipperier than your average rap-rock lunks. Their EP has its moments: "Funky Shit" is funky indeed, with Yelawolf drawling, "Not a frat boy/I'm a rap boy/In Hollywood/Like Aykroyd." But in "Push 'Em" and the ill-conceived reggae turn "6 Feet Underground," Barker and Yelawolf can't transcend the essential gaucheness of the genre. Seems they are a bit frat-boyish, after all. 

Listen to 'Psycho White'

“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.