Prince William and Kate Middleton Prince William and Kate Middleton

Britain's Royal Mail will issue a new set of stamps to commemorate Prince William and Kate Middleton's upcoming wedding.

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The stamps have been approved by William and will be released eight days before the wedding on April 21 — Queen Elizabeth II's 85th birthday. They can be ordered starting April 7.

This will be the third time William has been featured on a stamp. He was featured on a sheet in 2000 to celebrate the Queen Mother's 100th birthday and in 2003 for his 21st birthday.