Superstar Beyonce Knowles is so impressed with the digital imagery on the video for her duet with Shakira, sometimes even she can’t tell the two of them apart. The sexy Deja Vu singer teams up with Shakira for her latest hit Beautiful Liar, and admits they did such a good job synchronising their dance moves in the video that she has trouble distinguishing between the pair herself. She says, ‘For the video, they put us in a room together for about two hours and we just came up with the choreography and played off the fact we look similar. It was really cool because I don’t even know who is who sometimes - even I get confused!’