Meghan left Harry's side at the reception when she took to the dance floor with George Clooney.
Although Meghan and Catherine - who is married to Harry's brother Prince William - gladly accepted George's invitation to dance, the same can't be said for Sarah Ferguson.
The newly weds - who will now be known as the Duke and Duchess of Sussex - reportedly chose the classic hit as Meghan had previously called it her "happy song", according to a source. Meghan Markle and Prince Harry are obviously the main attractions at their royal wedding today, but their itty bitty bridal party is definitely giving them a run for their money.
The other bridesmaids and page boys in the group of 10 were also under 10 years old.
But despite Charlotte's adorable regality on the steps of St. George's Chapel, her true shining moment came while looking out the window of the auto when she arrived at the ceremony.
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The designer of the wedding dress, Clare Waight Keller, was also behind the bridesmaids' dresses. Twins Brian and John Mulroney, 7, helped the bride with her veil out of the vehicle. The dress featured short puff sleeves and a double silk ribbon in the back.
But waiting always got everyone bored, and Princess Charlotte was no exception.
The mini-Meghans are wearing white leather Aquazurra shoes with the cutest touch: bridesmaid's pair is monogrammed with their initials and the wedding date.
However, according to the Mirror, the children were so mischievous during the rehearsals for the wedding that Kate and the other children's mums were asked to accompany the children into the chapel.
Princess Charlotte is only 3 years old, but the young royal has come into her own.
Meghan's spring bouquet featured her favourite flowers, Forget-Me-Nots, amongst scented sweet peas and sprigs of myrtle. "She has a very close-knit circle of friends and she didn't want to choose one over another", a spokesman from Kensington Palace told ET earlier this month.
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That makes it now the fifth highest grossing film of all time worldwide, with room to carry on moving up the ranks. Infinity War even beat the previous record-holder Marvel's The Avengers , which grossed S$13.7 million in 2012.