The Aussie star shrieked as she accepted her challenge, then nominated Jason Bateman!
The actor happily accepted the ALS Ice Bucket Challenge!
The Sex and the City star wore only a towel when she accepted her challenge!
The former president took it like a champ, then nominated his pal (and fellow former president!) Bill Clinton.
The super-cute couple accepted the ALS Ice Bucket Challenge together!
The Austin Powers alum pointed out that California is in a drought, so, sticking an Oreo cookie in his mouth, he "improvised" and accepted the challenge by getting doused in ice cold milk!
The Think Like a Man, Too star accepted his challenge (shirtless!) and nominated Gabrielle Union, Dwyane Wade and Lebron James.
The rapper accepted his challenge onstage, with Lil Wayne dumping the bucket of ice over his head. He then nominated Beyoncé!
The Vogue editor-in-chief accepted the challenge from daughter Bee Shaffer, then nominated Roger Federer and Dominic West.
Adam Levine's wife still looked model perfect as she accepted her challenge!
The mom-to-be accepted the challenge, nominating Kasey Musgraves, Wladimir Klitschko and her unborn child.
The cooking guru and the staff of her show accepted their challenge from Carrie Keagan! They in turn nominated Regis Philbin, Sharon Osbourne and Sesame Street!
This Muppet wasn't afraid to accept the ALS Ice Bucket Challenge!
The blonde beauty accepted the challenge and nominated her ex Chris Martin.
Dressed in a Teenage Mutant Ninja Turtle costume, the Hunger Games star took on the challenge without his bow and arrow.
This ALS ice bucket challenge involves a saucepan.
The husband and wife team made their ice bucket challenge a family affair.
The dad-to-be let Wilmer Valderrama do the honors before nominating Dax Shepard, who was waiting in the wings.
The Mission: Impossible 5 actor and director accepted Hugh Jackman's challenge and made donations on behalf of every member of the movie's cast and crew.
Emily Blunt soaked her husband...
...and John Krasinski ambushed her in retribution.
Frontman Dave Grohl recreated the iconic scene from Carrie.
The "Wet" singer squealed as she got, well, wet.
Before the Hell's Kitchen host got doused by his kids, he challenged Bradley Cooper to follow suit.