The royal couple's intimate moment on their wedding day in April 2011 picked up 63% of the vote in a poll launched by romantic social network Zoosk to celebrate National Kissing Day (July 6).
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Kate Middleton and Prince William kiss
Madonna's girl-on-girl kiss with Britney Spears and Christina Aguilera at the 2003 MTV Video Music Awards came second on 24%, followed by Will Ferrell and Sacha Baron Cohen's snog at MTV's 2007 Movie Awards ceremony with 8%.
David Walliams kissing the hand of Simon Cowell on this year's Britain's Got Talent was voted the top reality TV kiss with 51%, beating Natalie Cassidy's clinch with Frankie Cocozza in Celebrity Big Brother (17%) and the moment TOWIE's James 'Arg' Argent and Gemma Collins locked lips, which picked up 14% of the vote.
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Britney and Madonna kiss at the MTV Awards in 2003
© PA Images / Mark J. Terrill/AP
Other surveys carried out for National Kissing Day have revealed that 18- to 24-year-olds send four virtual kisses per day - twice the national average - in text messages.
It was also discovered that only 20% of Britons receive real kisses from the people they send 'x's to.
Photo gallery - Top celebrity kisses:
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