Produced by Dr. Luke and Max Martin, the track about not wanting a great night to end is likely to light up dance floors everywhere. Brit teases, "If you want this good s*** / Sicker than the remix / Baby let me blow your mind tonight."
'Till the World Ends' was co-written by Kesha and includes the rapid word repetition often heard in the 'We R Who We R' singer's music. Spears sings, "I can't take it take it take no more / Never felt like felt like this before / Come on get me get me on the floor / DJ what you what you waiting for?"
After the chorus, the pulsing beat picks up even more speed and "whoa-oh-oh-oh" vocal loops swirl in to add another layer of ear candy.
'Femme Fatale' hits stores March 29. The album's first single, 'Hold it Against Me,' reached No. 1, and Britney's producers have since released snippets of several more songs that will appear on the record, including 'The Big Fat Bass' and 'How I Roll.'
To hear 'Till the World Ends,' tune into AOL Radio's Fresh 40 station.