One singer can sing, the other singer can only sing with synthesizers and studio help. Can you guess who's who? Well, the one with talent, Lily Allen, covers the one without singing talent but stage presence, Britney Spears, and the result is pretty decent. I understand the lyrics now and I wanna drive around or clean up my house while listening to Lily Allen's "Womanizer" instead of screaming in agony like I do when I hear Britney Spears' version. Enjoy.