The "We Found Love" singer was hospitalized in Malmo, Sweden. A representative from Live Nation explained that Rihanna was "not in condition to conduct the concert."
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The singer apologized via Twitter, tweeting a picture of her arm with an IV drip, and later released a statement blaming it on a case of the flu.
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"I am sorry to everyone who was coming out to my show in Malmo. I was so excited to perform for you all. It would have been a great time… so much better than being sick with the flu, ugh! I’m really disappointed I couldn’t be there."
According to her website, the concert will be rescheduled.
We hope that she gets better soon!