LONDON – Britain's Duke and Duchess of Cambridge have been voted the world's most perfect couple, ndtv.com reported. Prince William and Duchess Catherine, who are currently expecting their first child together, topped a poll by UK TV network Watch, to find the celebrity pair British couples aspire to be like in 2013. The royal couple beat good friends David and Victoria Beckham into second place while Brad Pitt and Angelina Jolie came third, with Beyonce and Jay-Z in fourth. – SG