'Halo' superstar Beyoncé has revealed that she was recently struck down with tonsilitis during her 'Mrs. Carter' tour, which appears to be the reason behind the cancellation of her concert in Belgium last week.

As soon as news broke that the vocal sensation had axed the date in Antwerp on May 14, rumours began to surface that suggested Beyoncé was pregnant again and E! even reported that sources had confirmed to reporters that she was expecting another baby.

However, some new behind-the-scenes clips from her tour have been shared online and one of them sees Beyoncé telling the camera that she is anxious to perform because doctors had just diagnosed her with the infection: "I'm actually quite nervous because yesterday I was diagnosed with tonsillitis. Hopefully I'll give Croatians a great concert. I'm going to fight as hard as I can, I know that God has my back."

Over the weekend, Beyoncé posted a message to her Instagram account which hit back at the speculation that's been growing in the press lately although it has since been deleted. It read: "I can't stop the rumors from starting, and I can't really change peoples minds who believe them, all I can do is sit back and laugh at these low life people who have nothing better to do than talk about me."