OK, this whole Ice Bucket Challenge is destined to go down as one of the most successful viral campaigns in history, raising awareness and money for ALS.

The latest luminary to brave a frigid dousing is Amazon CEO Jeff Bezos, who accepted the challenge from Microsoft CEO Satya Nadella. Bezos did the deed at an all-hands Amazon meeting in Seattle today, standing in a kiddie pool and dumping a bucket of ice water on himself.

Bezos, living up to his reputation as a Star Trek fanatic, picked William Shatner, Patrick Stewart and George Takei as his three people to challenge, after joking that he thought about challenging Queen Elizabeth, the Pope, and others.

And afterward, of course, Bezos let loose with one of his signature laughs.

Watch the video above, via Amazon’s YouTube channel.

Previously: Epic: Bill Gates geeks out on the ALS Ice Bucket Challenge

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