Britney Spears already has a breakout hit from her new album Femme Fatale with the smash "Hold It Against Me." But the second single may be better.
Max Martin and Dr. Luke produced "Till The World Ends," which leaked today and was co-written by other than Ke$ha. Who would have guessed?
What do you think? One of her best in years or just so-so? Take a listen to the latest from the pop icon below, and leave a comment with your reaction:
How does Britney Spears' "Till The World Ends" measure up?