Perry 'Paid £1.2Million To Sing At Holly Valance's Wedding'
Katy reportedly got the huge sum for a 45-minute set...
The ex-Simon Cowell - were also treated to a performance from the cast of Jersey Boys, with Candy said to have arranged for them to fly from London to LA to sing for them.
Valance, who also took the charts by storm with single Kiss Kiss in 2001, apparently wore a £35,000 J'Aton Couture dress for her big day - with the wedding thought to have set the couple back between £2.5million and £3million in total.
As well as SiCo, the likes of Sir Elton John and Princesses Beatrice and Eugenie were also present at the bash.