The ALS Ice Bucket Challenge continued sweeping Hollywood by storm this week, with stars like Jennifer Aniston getting her hair wet and Leo DiCaprio getting soaked all the way in Alberta, Canada. The charitable trend has provided a win-win situation for all of us for weeks now: we get to see soaked (and often shirtless) stars and models, and they get to pay it forward. Here's how it works: people are nominated by their friends to go through with the stunt and share the video proof on social media. If they don't follow through, they're encouraged to at least make a donation. In the process, everyone raises awareness and money for the ALS Association to find a cure for amyotrophic lateral sclerosis or ALS. Keep reading to see the best videos of stars getting drenched!