Brrr, the newest viral trend has celebrities including Justin Timberlake, Mark Zuckerberg and Martha Stewart dumping buckets of freezing-cold water over themselves. All in the name of charity.
Tipping buckets of chilled water over their heads, anyone who takes part in the challenge then gets the opportunity to nominate a further three people to drench themselves within the next 24 hours.
Failing to perform the stunt in the allotted time means giving a donation to charity.
In the US, the craze is helping to fund research into Lou Gehrig’s disease, known in the UK as motor neurone disease.
As the icy water soaks the founder of Facebook, Mark Zuckerberg challenges the richest man on Earth, Bill Gates, to take part in the stunt, along with Facebook co-worker Sheryl Sandberg and Netflix founder Reed Hastings.
“That was really cold” shivers Zuckerberg in the video posted to Facebook – which has been shared and liked almost 300,000 times in the past 48 hours.
US President Barack Obama has reportedly declined to get soaked but has instead made a donation.