Anthony Carbajal, ALS Victim, Addresses Ice Bucket Challenge Critics: A Must-Watch >>Hollywood

This is a must-watch video.

It features Anthony Carbajal, a 26-year old man who has been diagnosed with ALS. His grandmother died of this disease and he takes care of his mother, who has also been diagnosed with it.

Breaking down into tears after taking the Ice Bucket Challenge at the outset, Carbajal then details just how "f-cking scary" this illness can be.

He says he's grateful ALS is finally in the spotlight for a bit and he then addresses critics of the Ice Bucket trend, telling them their Facebook feeds will soon go back to cat videos and Let It Go covers.

But for now? The Ice Bucket Challenge has raised millions of dollars for ALS research and he sees that as more important than whatever irritation some folks might have with it. We agree. So should you. Watch this video.

Anthony Carbajal Takes Ice Bucket Challenge, Addresses Hater

"You have no idea how every single challenge makes me feel, lifts my spirits, lifts every single ALS patient's spirits," Carbajal says. "You're really, truly making a difference."

Here's a look at the stars who have helped make that difference, from Justin Bieber to Bill Gates to Lindsay Lohan and many more:

Celebrities Accept ALS Ice Bucket Challenge

1. Justin Bieber Accepts Ice Bucket Challenge