Pop star Rihanna has called off her scheduled tour launch Friday at Auburn’s White River Amphitheatre due to “production changes,” Live Nation announced today. The singer’s Last Girl On Earth Tour – which also features pop upstart Ke$ha – will instead kick off on the Fourth of July at Vancouver, BC’s General Motors Place.

Ticket refunds will be available at point of purchase. As a policy, Live Nation does not comment on ticket sales, according to local marketing coordinator Ashley Graham, who did not elaborate on how many tickets had been sold for the White River show.