Singer and fiance Travis Kelce have been coy but festivities are getting under way at Madison Square Garden

The streets of New York City and the first-class lounges of Heathrow and JFK airports were crawling on Friday with celebrities on their way to attend the wedding of the year.

Taylor Swift had kept fans guessing about whether it was her nuptials that had caused the closure of 11 streets in Midtown and the endless deliveries of flowers, food and decorations to the huge Madison Square Garden arena.