Mel B wore an ivory custom gown from Josephine Scott for her nuptials, and later changed into a dress from designer Justin Alexander. “Mel was a dream to work with, bringing her own sense of style to the occasion,” Caroline Black, the owner of Evelie Bridal Boutiques in London, who helped the musician pick out her wedding attire, tells PEOPLE.

Former Spice Girl Mel B married longtime boyfriend Rory McPhee at London’s St. Paul’s Cathedral, joined by her daughters and celebrity guests.

Spice Girl Mel B and new husband Rory McPhee tied the knot in style earlier today, with the happy couple exchanging vows at St Paul's Cathedral