Beyoncé is on the rebound after canceling a concert Tuesday due to "dehydration and exhaustion." In a letter on her website, the 31-year-old entertainer apologized to her "dearest fans" in Antwerp, Belgium, who missed out on seeing the singer perform yesterday. "I've never postponed a show in my life," Beyoncé wrote. "It was very hard … Continue reading Beyonce, feeling better, apologizes for canceled show