United Kingdom, May 23 -- Mel B's wedding to Rory McPhee will be "regal" and "proper".

The Spice Girls star is due to tie the knot with the hair stylist at St. Paul's Cathedral in London this summer after being allowed to book the historic venue since being becoming a Member of the Order of the British Empire (MBE) in 2022 - and she's now revealed the ceremony will be "formal" with all the female guests required to wear hats.

She told WWD: "This will be a very formal, English wedding where I want to feel regal and very proper. All the ladies will wear hats or fascinators."

Mel - real name Melanie Brown - went on to reveal it will be followed by a second ceremony in an undisclosed location abroad.

She added: "Then, I'm having a second ...