I didn't like it; it's ridiculously generic (read: lazy). Neither woman has American pop voices, and I don't care for Rihanna's music any more because her voice is better suited for reggae/dancehall music (and she churns out similarly lazy music like it's going out of style); it sounds like bleating on pop songs. 'Man Down' was a great song b/c it played to her vocal strengths. Shakira in Spanish >>>>>> Shakira in English. If they'd done something that was a true fusion of Latin/Caribbean sounds it might have been something. It'll be a hit since it'll rely on sex in the video, which is true to form and the true seller for either woman, and I say that as someone who really enjoys Shakira.