Ice Bucket Challenge Roundup: 30 Stars Including Katy Perry, Demi Lovato + Many More Raise ALS Awareness
Check out the Ice Bucket Challenge roundup to watch 30 celebs who took on the challenge for ALS awareness!
Ice Bucket Challenge
Mark Zuckerberg Takes on the Ice Bucket Challenge
The Ice Bucket Challenge is EVERYWHERE...
In case you've been under a rock, or a bucket in this case, the Ice Bucket Challenge is where (if you're nominated) within 24 hours you must pour a bucket of ice water on your head. Or donate to the ALS foundation...
![Justin Timberlake Accepts ALS Ice Bucket Challenge [VIDEO]](http://townsquare.media/site/252/files/2014/08/JustinTimberlake1.jpg?w=980&q=75)
Justin Timberlake Accepts ALS Ice Bucket Challenge [VIDEO]
The latest celeb to take on the ALS Ice Bucket Challenge? Justin Timberlake!