However, Kate Middleton admittedly didn’t anticipate a proposal on that trip.
William later jokingly asked the singer, “Did you know you’ve got a bit of competition?”
when they met in 2012 at the Diamond Jubilee concert honoring Queen Elizabeth II.

In another life, perhaps Cole and the princess could have done a duet.
They said, “She has already had her hen night, but it was certainly very low-key.
[…] It was done privately.

Other rumored guests that they speculated could have attended were Astrid Harbord and Alice Hadden-Paton.
Still, even without alcohol, Kate’s karaoke likely kept the party lively!
It is a private matter.”

Of course, the wedding itself wasn’t private.