The Saturdays singer, 25, is getting married to her soccer star fiancé Wayne Bridge, 33 - with whom she has eight-month-old son Parker - and claims their nuptials will be better than the 'Keeping Up with the Kardashians' star and rapper's recent lavish ceremony in Italy.
Quizzed on whether she's planning a similar do, she said: ''It's going to be bigger! Remember they had that flower wall they had? We're going to have two of them!''
Frankie's bandmate Rochelle Humes, 25, who is married to former JLS star Marvin Humes, 29, added: ''I was like, 'Please can you get a flower wall.' I want her to do things that I didn't do at my wedding.''
Una told Star magazine: ''We're looking forward to the big reveal!''
Rochelle - who has 13-month-old daughter Alaia-Mai with Marvin - added: ''Yeah, I love that moment.''