United Kingdom, July 10 -- Taylor Swift and Travis Kelce spent an estimated $30 million on their lavish wedding for 1,000 guests.

The 36-year-old pop superstar married the NFL player at Madison Square Garden in New York City on July 3 taking over the fabled venue for two nights - which included a rehearsal dinner before the big day - and now an expert has claimed the whole event would have cost between $20 and $30 million as the flowers and decor alone would have cost them around $5 million.

Esther Lee, editorial director at The Knot Worldwide, told New York Post column PageSix: "While the average American wedding sits at $34,000, according to The Knot Real Weddings Study, this production would've operated on a completely different scal...