"They're flying out the door," said Tony Warner, assistant manager of London's Escapade party store. "They're beating (masks of) Simon Cowell, they're beating everyone else."

At Zhang's birthday party yesterday, Chinese rocker Wang Feng sent a white drone carrying a diamond ring flying in, accompanied by romantic music.

And the other party ensign, is still in the top of the hill, and he desperately flying towards oneself and fired.