Jack White helps Stephen revive his music career, and Florence and the Machine perform.

Stephen comes clean with Jack White, Obama defends actions in Libya, and Talib Kweli performs.

Jack White presents "Charlene II (I'm Over You)," and Stephen performs with the Black Belles.

Republicans attack Barack Obama's slow jam, Stephen releases the first Super Fun Pack treasure hunt clue, and Jack White discusses his solo album and rare marketing ploy.