Beyoncé 's dance captain is apologizing for ripping Virgin Voyages for an alleged incident on the cruise line ... she's walking back her claims, and it sounds like she spouted off before getting her facts straight. Here's the deal ... Ashley Everett -- who dances alongside Beyoncé in the "Single Ladies" music video -- went on social media this week and blasted Virgin Voyages for allegedly kicking her off a stage while she was performing the Beyoncé hit. Ashley claimed race was involved, but she'