Song Title : Till The World Ends.
Artist: Britney Spears.
Date Released : April 15, 2011.
Genre : Dance-pop, electropop.
Written By : Lukasz Gottwald, Alexander Kronlund, Max Martin, Kesha Sebert.
Producer/s : Dr. Luke, Max Martin, Billboard.
Album : Femme Fatale.

The original video for the song features Spears at an apocalyptic underground rave while asteroids fall from the sky. The dance version, however, cuts out all of the apocalyptic scenes and instead adds in extended dance clips.

Spears recently tweeted about the alternate video, writing, “Just saw the final cut of the dance version of the #TTWE video. Not sure which one I like best?”