Till the World Ends

"Till the World Ends" is a song by American singer Britney Spears from her seventh studio album, Femme Fatale (2011). It was written by Kesha, Dr. Luke, Alexander Kronlund, and Max Martin, while the production was handled by Luke, Martin and Billboard. It was released as the second single from the album on March 4, 2011, by Jive Records.