You can't refresh your Facebook feed or Twitter timeline lately without a new "Ice Bucket Challenge" popping up. The viral campaign designed to raise money and awareness for Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig’s disease, has raised more than $31 million in less than a month, a number that continues to grow.
You might think that if you've seen one famous person shivering in a wet shirt, you've seen them all, but these celebrities took the challenge to new levels. We've sorted through dozens of ice-cold actors, musicians, athletes and more to bring you these nine must-watch videos:
Chris Pratt
The "Guardians of the Galaxy" star thought he was being sly when he interpreted "ice" in a much more enjoyable way, but he couldn't get away with it that easily.
Foo Fighters
Dave Grohl and bandmates went all out completing their challenge, reenacting the famous prom scene from the movie, "Carrie" — subbing in ice water for pig's blood.
Conan O'Brien
This video features a great switcheroo, but the real highlight is seeing the talk show host's famous red coif under water.
"Weird Al" Yankovic
The moment of dousing is the best part of most videos, but the highlight here is who the parody song singer chooses to challenge next and how enraged he sounds while naming them.
Gwen Stefani
In most videos, the actual dumping of ice is quick and fairly painless, but that wasn't the singer's experience. Instead, she gets taunted by fellow "The Voice" coach Blake Shelton as he promises to "do it real fast," but instead pours the very icy bucket over her head agonizingly slow.
Oprah Winfrey
The talk show queen wins hands-down for best ice bucket scream. There's just something about listening to her booming voice, which is usually shouting guest introductions, howling out in frozen shock that makes us want to say, "You get a bucket of ice! And you get a bucket of ice!"
Hugh Jackman, Rooney Mara and Garrett Hedlund
The stars of the upcoming "Pan" banded together on location during what appears to be a blustery day on set to get even chillier. The actors are later joined by dozens more from the cast and crew while fireworks go off in the background. Let's hope the movie turns out as entertaining as this production.
Bill Gates
"I want to do it better than it's been done," Gates says after being challenged by fellow tech tycoon Mark Zuckerberg. Did he succeed? It made our list.
Paul Bissonnette
The professional hockey player is used to the ice, so he didn't settle for standard frozen water like most others. Instead, he made arguably the most enjoyable and best produced video yet, featuring a helicopter, glaciers and a speedo.