The former Neighbours actress married her billionaire partner Nick Candy in Beverly Hills on Saturday (September 29).
Perry is said to have been paid £1.2 million for her 45-minute set in front of the couple's friends and family, the Daily Mail reports.
The 300 guests were also given a performance by the cast of Jersey Boys, after the groom arranged for the singers to fly from London to Los Angeles.
Valance wore a J'Aton Couture dress that included a 15ft veil, and is said to have cost around £35,000.
Simon Cowell, Sir Elton John, Princesses Beatrice and Eugenie, Tracey Emin and Strictly Come Dancing judge Bruno Tonioli were among the guests.
The wedding reportedly cost between £2.5 million and £3 million overall.
Holly Valance first announced her engagement to the property tycoon in December, having dated for nearly two years.