Katy Perry performed to hundreds of lucky Hit Network listeners from around the country on Friday afternoon in a secret location on the Harbour in Sydney.
Hamish & Andy hosted the afternoon and the performance was also enjoyed by Carrie & Tommy, Em Rusciano, Dr Chris Brown, Brendan and Alex Fevola and Rebecca Harding.
She performed 5 songs – Chained to the Rhythm, Hey Hey, Save as Draft, Witness and Firework.