Katy Perry apologized after her festival performance in Belgium was canceled hours before she was set to take the stage due to severe weather concerns. (Theo Wargo/Getty Images) NEW You can now listen to Fox News articles! Katy Perry was forced to cancel her headlining performance at Belgium's Werchter Boutique just hours before she was set to the stage on Saturday after forecasts of severe weather prompted officials to shut down the outdoor festival. In an Instagram post, the 41-year-old pop

Tag-uri: Instagram