Amazon CEO Jeff Bezos is the latest to answer the call and take a bucket of ice water to the head for charity. Bezos got up on stage during a company all-hands meeting to soak himself while standing in what appears to be an inflatable kiddie pool. Bezos, of course, has to pass the challenge on from there, and he makes his selection a bit more interesting by theming it: hes challenging Star Trek stars William Shatner, Patrick Stewart, and George Takei to take the Ice Bucket Challenge next.