Slaughterhouse – Joe Budden, Joell Ortiz, Royce da 5'9" and Crooked I – are less a supergroup than a collection of oddballs. Eminem turns up on two tracks and produces two more. But the group's second LP is a showcase for gritty traditionalism: On "Hammer Dance," the hammer in question is on a pistol, and the dance is strictly metaphorical.

Listen to "Hammer Dance":

“1999”

“I don’t consider myself a great poet,” Prince told Rolling Stone. “I just know I’m here to say what’s on my mind.” In the case of the apocalyptic party anthem “1999,” he was worried about then-president Ronald Reagan’s foreign policies. The song’s melody is based on a riff borrowed from the Mamas and Papas’ “Monday, Monday,” and Prince originally envisioned the first verse with three-part harmony but later split the vocals between himself and members of the Revolution. Because Warner Bros., with whom Prince was locked in a contractual battle, owned the original’s masters, Prince rerecorded the song and appropriately released that version in 1999.