But the stars were all outshone by the smallest guest of all - two-year-old Zachary Furnish-John.
The toddler joined his proud dads, Elton and husband David Furnish, as they welcomed the stars to their annual party.
And showing his is very much his fathers' son, little Zach did not seem the least bit overwhelmed.
Instead he happily high fived U2 singer Bono as Elton showed him off to the assembled company.
The youngster entered the party holding tightly to his fathers' hands.
In his his miniature tuxedo, his red hair cut into a floppy bowl cut, Zachary looked like a miniature version of Elton.
Zachary was born to a surrogate mother on 25th December 2010, and has since become one of the most famous celebrity children around.
He now has a baby brother to play with, although at just a month-old it will be a while before Elijah is joining him at parties.
- Daily Mail