Beyonce Apologizes To Fans After Missing Belgium Show, Pregnancy Speculation Grows

With widespread reports Beyonce and Jay-Z are expecting their second child, the A-list diva canceled Tuesday's show in Belgium due to dehydration and exhaustion, then wrote an open letter to her fans apologizing for the lost night.

The 31-year-old, currently on her Mrs. Carter world tour, wrote in a Facebook post: "To my dearest fans in Antwerp. I've never postponed a show in my life. It was very hard for me. I promise I will make it up very soon. I'm sorry if I disappointed you. Thank you for your concern. I'm feeling much better now. And I'm ready to give you a great show.

As we previously reported, speculation has sizzled about the super-couple's second child after recent photos revealed what appears to be the beginning of a baby bump.

Her garb at last week's Met Gala, a high-waisted Givenchy gown that played down her midsection, has only fueled speculation.

The Houston-born superstar told Good Morning America earlier this month that she'd love to give her 1-year-old daughter, Blue Ivy, a younger sibling “at some point, when it’s supposed to happen.”