First rule of America's Got Talent: Don't mess with Melanie Brown. The former Spice Girl did not appreciate a crude made by Simon Cowell and, boy, did she let him have it. During Tuesday's quarterfinals, a magician suffered a technical malfunction that resulted in a lackluster performance. While critiquing the act, Cowell compared it to Mel B's wedding night and it did not go over well. "I kind of imagine this would be like Mel B's wedding night," Cowell said before adding, "A lot of anticipation, not much promise or delivery." That's when Mel B.