People in Essex have now jumped on the bandwagon by braving the Ice Bucket Challenge, but some more familiar faces tried it first.
Here we take a look at 10 big names who have taken the plunge to raise awareness for motor neurone disease.
1. David Beckham
2. George Bush
3. Charlie Sheen
4. Bill Gates
5. José Mourinho
6. Robert Pattinson
7. Jamie Oliver
8. Shakira and Pique
9. Novak Djokovic
10. Rory McIlroy and Tiger Woods