Today marks Prince William and Kate Middleton's fourth anniversary.
After four years together, the couple have adopted a dog, moved into their own home at Kensington Palace, and have welcomed their first child, Prince George.
Now, they're expecting their second child any day.
Though the couple shine at red carpet galas, fundraisers and tours, some of the best moments between the two are candid shots of them laughing and smiling.
Relive some of the couple's most best moments.
April 29 2011: Kate and William kiss on their wedding day.
May 24, 2011: The royals meet the Obamas at Buckingham Palace before attending a special lunch hosted by Queen Elizabeth.
(Source: People)
July 7, 2011: Kate and William show off matching cowboy get up while visiting Canada during their first joint overseas tour.
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