¿ɹɐǝʎ sıɥʇ suoıʇsǝnb ɹoɟ sɹǝʍsuɐ puɐ sɹǝʍsuɐ ɹoɟ suoıʇsǝnb ɥɔʇıʍs ǝʍ ǝɹǝɥʍ ƃuıɥ⊥ ǝɥʇ ƃuıop ǝʍ ǝɹ∀
I guess we’ll have to wait until it’s midnight on the west coast.
To answer the question (and I think I’ve told the story here before) a friend once was invited to a double surprise party. It was for a young couple whose birthdays were one day apart. It was a lavish affair with people being flown in from all over. The guests all kept the secret and the couple was surely surprised.
Half an hour into the party the couple announced that the surprise was really on the guests; this was their surprise wedding.
With that a minister appeared, a wedding dress was donned, and the couple was married before the people thay loved.
Best surprise party ever.