Kristen Bell soaked in the sun aboard a cruise ship off the coast of Miami on Friday. She's attending Summit at Sea, the elite invite-only conference attended by the likes of Russell Simmons and Richard Branson. Kristen enjoyed her bikini time by the water and joked on Twitter with her friend Jedidiah, who works for the Invisible Children organization which the actress is also involved in. Kristen's fiancé Dax Shepard was not by her side, but he kept himself busy by expressing his shock and sadness about Pia Toscano's American Idol elimination. Kristen's boat adventure may keep her from tomorrow's big red-carpet premiere of Scream 4 in LA, though most of you think that her character will meet her demise at the hand of Ghostface.