Sorry, Radiohead fans — the band swears the only sequel you're going to get to The King of Limbs is these tunes. Both are superb electro ballads that would have fit King's moodier second half. "Supercollider" is familiar from the group's epochal 2008 tour; the stuttering drums on the new "The Butcher" evoke Prince's "Housequake," while Thom Yorke layers harmonies into a celebration of paranoid dread.

Listen to "The Butcher":

Photos: Fifteen Years of Radiohead

Review: "Supercollider"

“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.