1: The Hemsworth brothers
Australian brothers and actors Chris, Liam and Luke Hemsworth take the ALS ice bucket challenge. Warning: contains some explicit language.
2: Zac Efron, Ashley Tisdale
Actress Ashley Tisdale takes the ice bucket challenge along with her High School Musical co-star Zac Efron.
3: Victoria Beckham
It's a side of Victoria Beckham that we don't usually see, the mother and fashion designer accepts the ice bucket challenge in the name of charity.
4: Robert Pattinson
British actor Robert Pattinson accepted Zac Efron's nomination to do the challenge, but did not seem to have a bucket handy at the time. Check out the video below:
5: Rihanna and Eminem
While on tour in Detroit, rapper Eminem hesitantly accepts the the ice bucket challenge, going on to nominate his tour buddy Rihanna to take the challenge also.
6: Britney Spears
Pop star Britney Spears accepts her younger sister's nomination.
US talk show host Oprah Winfrey takes the challenge, going on to nominate actress Dame Helen Mirren, director Steven Spielberg and actor Manish Danyal.
8: Gwyneth Paltrow
Actress and health guru Gwyneth Paltrow tries to contain her excitement as she rattles off her nominations before running off screen as soon as she is doused with ice water. Watch her Instagram video here:
9: Demi Lovato
Singer and actress Demi Lovato accepts the challenge, not only being drenched with ice water once but five times, check out the video below:
10: Anne Hathaway
Actress Anne Hathaway joined Instagram specifically to take on the ALS ice bucket challenge. Watch her attempt: