Katy Perry Announces 'Witness' Tour in Australia - See the Full Date List!

Katy Perry is taking her Witness: The Tour Down Under! The 32-year-old “Bon Appetit” singer revealed the dates of the third leg of her tour – set to kick off next summer – with fans at Sydney's Myer (the department store sponsoring the tour) on Friday (June 30) in Sydney, Australia. PHOTOS: Check out the