Sources have revealed that Oscar winning actor George Clooney was one of the liveliest guests, getting behind the bar to pour shots for the Duke and Duchess of Sussex's nearest and dearest.
"George hopped behind the bar and was actually bartending for a bit," an insider told ET. "He poured Casamigos drinks and shots and got everyone dancing!"
And dance he did. The 57-year-old took both Meghan and Kate Middleton on the dance floor for a twirl, according to The Sun.
Other A-listers at the 200-person Frogmore reception hosted by Prince Charles reportedly included Elton John and David Furnish, Serena Williams and Alexis Ohanian, David and Victoria Beckham, Priyanka Chopra, Idris Elba and James Corden.
Meghan's Suits co-stars including Abigail Spencer, Gabriel Macht and Patrick J. Adams were also in attendance.