Article continues below advertisementHeights are criminal to Britney Spears.The pop star, 43, shrieked as she considered jumping off a "high" yacht. In a video shared to her Instagram on Wednesday, November 12, Spears screamed expletives and alternated between what sounded like Australian, British and American accents.Article continues below advertisementSource: @britneyspears/InstagramBritney Spears was scared to jump off a boat."It's f------ high! F---!" the singer exclaimed as she glanced down at the ocean in fear. "[Looks like I'm going] to die. I'm scared.