This isn't a parody. Some of the most powerful people in the business world are doing it. For charity! It is a stunt that's part of a campaign to raise money to fight ALS (amyotrophic lateral sclerosis). Those who take the challenge can nominate three other people to take the challenge within 24 hours or donate to the ALS foundation.

Zuckerberg was challenged by New Jersey Governor Chris Christie. He then challenged Bill Gates, Sheryl Sandberg and Netflix CEO Reed Hastings to do it.

Even Microsoft CEO Satya Nadella took the challenge. Watch it below:

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