Just Britney Spears, a beach and no bikini. The Princess of Pop left little to the imagination on Wednesday, May 22, when she took to Instagram with a video of herself laying completely naked in shallow water. While the initial clip was later deleted by Spears, she re-uploaded the same footage about an hour later with slightly less elaborate of a caption. “Say hello to my A– !!! Raised my a– a little higher so I have more booty !!!” Spears wrote in her original caption, as she posed in crystal-clear water wearing absolutely nothing but sunglasses and a choker necklace. “Thinking of getting i…