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Frank Ocean's recent vocal cord injury is causing major changes to Drake's OVO Fest.  Ocean was scheduled to take the stage on the festival's opening night on Sunday, August 4th.  

According to MTV News, organizers have decided to scrap Sunday's show after a vocal cord tear caused Ocean to pull out. 

Those fans who purchased tickets to the concert's first night will be able to receive a refund.  Meantime, singer James Blake - who was also scheduled to perform on Sunday -- will now appear at the sold-out August 5th show ahead of Drake and a number of special guests.  Drake's OVO Fest will take place at Toronto's Molson Canadian Amphitheatre.  

Last week Ocean was forced to cancel the remaining dates of his sold-out Australian tour due to the injury.

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