NEWARK, NEW JERSEY - APRIL 01: Rihanna attends Black Girls Rock! 2016 at New Jersey Performing Arts Center on April 1, 2016 i
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Rihanna has cancelled her headlining performance at Lollapalooza Colombia, citing concerns over the quickly spreading Zika Virus. Organizers on Saturday noted that the search for a replacement headliner would take too long before the September 17 concert in Bogotá, so the entire festival has been cancelled. The news confirms earlier rumors of Rihanna allegedly pulling out of the show. 

Vulture notes that tickets for the event will be refunded, and that no other Lollapalooza concerts will be affected. 

The Zika virus—which is transmitted by mosquitoes and linked to birth defects in newborn babies—has prompted alarm for many, including several athletes headed to the Olympic Games in Rio de Janeiro, Brazil next month. Earlier in June, cyclist Tejay van Garderen became the first U.S. Olympic athlete to pull out of the games, citing fears of contracting the virus. Since then, other prominent athletes, such as U.S. women's soccer goalie Hope Solo, have expressed grave worries about Zika.

The inaugural Lollapalooza Colombia was slated to feature Wiz KhalifaLana Del ReyDisclosure, and The Chainsmokers among others. Rihanna has not delivered an official statement on abandoning her headlining slot.