What Exactly Is The Ice Bucket Challenge?

The ice bucket challenge is the latest internet craze to sweep the globe, with everyone from Mark Zuckerberg to Oprah Winfrey, Cristiano Ronaldo to Robbie Keane. It's a far better craze than that #NekNomination nonsense - nobody gets hurt and it's for a worthy cause!

The #IceBucketChallenge co-founder Pete Frates suffers from the motor neuron disease, ALS and the reason behind the challenge is to raise money and awareness for ALS research. The ALS Association has received $13.3 million in donations from July 29 to August 17 — that’s nearly 50 times the donations usually received at this “slow” time of year.

The idea behind the social media campaign is that you either donate money to an ALS charity, or dump a bucket of ice over yourself. After you've made your choice, you can nominate up to 3 friends to do the same within the same 24-hour period.

Here are some of the best ones so far!

5. Real Madrid star Cristiano Ronaldo gets involved in the action with a pair of tight blue speedos.

4. The Jimmy Fallon Show ice buckets multiple people.

3. Billionaire Bill Gates gives his personalised ALS Ice Bucket Challenge.

2. Taylor Swift representing the girls.

1. Charlie Sheen steps it up a notch with a bucket full of $10,000