The singer's publicist said Beyonce has been advised by her doctors to rest.
She was scheduled to perform at the Sportpaleis in Antwerp tongiht (May 14). The show will be rescheduled and tickets can be used at that show.
Her next tour date is on May 15 at the same arena. The statement said "she is awaiting word from her doctors before making a decision."
Beyonce, 31, launched her Mrs Carter World Tour last month in Belgrade, Serbia. It wraps on August 5 at the Barclays Centre in Brooklyn.
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You'll have to make an emotional appeal to your boss. Unless things change, you might have to find another job. You're a very tolerant person, but you can't handle toxic behaviour. A colleague who takes great pleasure in making everyone feel miserable should be reprimanded. Make it clear you aren't the only person who is suffering from their abuse. Explain how this bully is ruining morale. It's a system wide problem that needs to be nipped in the bud.More