Rihanna performs on stage at the V Music Festival in...

Rihanna performs on stage at the V Music Festival in Hylands Park, London. (Aug. 21, 2011) Credit: AP

Organizers say Rihanna has been forced to cancel a show in Sweden due to exhaustion for a second time this week.

Akesson says Rihanna "is exhausted and doesn't feel well," but could not give more details.

The singer called off a concert in Malmo in southern Sweden on Monday, but was able to perform the following night in Stockholm.

Organizers are trying to arrange new dates for the shows.
 

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