Beyonce dehydrated, exhausted, cancels show

Singer Beyonce had to cancel her concert in Belgium during her Mrs. Carter Show World Tour. Photo / AP

Beyonce has cancelled her concert in Belgium.

The Grown Woman singer was due to take the stage at the Sportpaleis arena in Antwerp this evening for the latest date on her 'Mrs. Carter Show World Tour', but she has pulled out of the gig citing dehydration and exhaustion.

The 31-year-old star - who began her tour in Serbia last month - will not be able to perform and is under strict doctor's orders to rest, her publicist has confirmed.

The concert will be rescheduled and Belgian fans who were eager to see the singer perform will have their tickets honoured at a later date.

A second show due to take place at the same venue is now also in doubt, with the publicist stating that Beyonce "is awaiting word from her doctors before making a decision".

Rumours began circulating earlier this week that Beyonce is expecting her second child following her appearance at the Met Ball in New York City last week, where the star's alleged pregnancy was the talk of the night amongst the A-list crowd.

Speculation has also been rampant with fans on social media, who have shared pictures of the singer appearing to sport a developing baby bump on her Mrs. Carter Show tour.

Beyonce's 65-date tour is currently travelling through Europe - with the singer completing the UK leg of her tour in Dublin, Ireland on Sunday - and is expected to wrap up in New York City on August 5.

Meanwhile, Beyonce has been tipped to join her husband Jay-Z at the opening night of Cannes Film Festival in France tomorrow.

The rapper will walk the red carpet with the stars of Baz Luhrmann's new movie, The Great Gatsby, which he provided the soundtrack for.

Jay - real name Shawn Carter - even called on his wife to contribute to the film's score by singing a cover of Amy Winehouse's Back to Black.

The Love on Top singer and Jay-Z welcomed their first child, 16-month-old daughter Blue Ivy Carter, into the world in January 2012.

- Bang! Showbiz